Booby

Booby (pronounced boo-bee)

(1) A bird, a gannet of the genus Sula, having a bright bill, bright feet, or both; some are listed as threatened or endangered.

(2) A slang term for someone thought stupid or a dunce, ignorant or foolish (although still used in the mid-twentieth century, it's probably now obsolete, the meaning crowded out by intrusion of newer slang, some of which has also fallen victim to the linguistic treadmill).

(3) The losing player in a game (the historic UK usage "booby prize", now largely obsolete except in informal use).

(4) One of the many slang terms for the human female's breasts and related to the more common boob, boobs and boobie.

(5) In croquet, a ball that has not passed through the first wicket. 

1590s: From Spanish Latin from the earlier pooby, apparently a blend of (the now obsolete in this context) poop (to befool) and baby, perhaps by association with Spanish bobo (stupid person, slow bird), thought to be from an imitative root of the Latin balbus (stuttering).  Balbus was from the primitive Indo-European balb- & balbal- (tongue-tied) and was cognate with the Ancient Greek βαμβαίνω (bambaínō) & βαμβαλύζω (bambalúzō) (I chatter with the teeth), the Russian болтать (boltatʹ) (to chatter, to babble), the Lithuanian balbė́ti (to talk, to babble), the Sanskrit बल्बला (balbalā) (stammering) and the Albanian belbët (stammering).  The booby prize dates from 1883, a prize given to the loser in a game as concept which persists in some sporting competitions as "the wooden spoon", the idea being something as removed as possible from the usual silverware given as trophies.  The booby trap was first noted in 1850, originally a schoolboy prank (ie something only a "boob" would fall for); the more lethal sense developed during World War I and remain common military and para-military use.  Booby and boobyism are nouns, boobyish and (the non-standard but potentially useful)  boobyesque are adjectives; the noun plural is boobies.

Boobies: found usually in pairs

A nice pair of boobies.  Charmingly, blue-footed boobies are known to be monogamous, pairs often staying together for life.

A booby is a seabird in the genus Sula, part of the Sulidae family. Boobies are closely related to the gannets (Morus), which were formerly included in Sula, the genus created in 1760 by the French naturalist Mathurin Jacques Brisson (1723-1806).  The name is derived from súla, the Old Norse and Icelandic word for the other member of the family Sulidae, the gannet.  The English name booby was based on the Spanish bobo (stupid) as the tame birds often landed on board sailing ships, where they were easily captured and eaten.  As well as a popular addition to the diet of sailors for whom meat other than fish was a rarity, it was fortuitous for many, the Admiralty's archives revealing boobies are often mentioned as having been caught and eaten by shipwrecked sailors.  In taxonomic classification, variations include Abbott's booby (Papasula abbotti), blue-footed booby (Sula nebouxii), brown booby (Sula leucogaster), masked booby (Sula dactylatra), Nazca booby (Sula granti), Peruvian booby (Sula variegata), red-footed booby (Sula sula) & Tasman booby (Sula dactylatra tasmani).

One step at a time.

The distinctive blue feet (the result of pigments ingested from their diet of fish) also play a part in the bobby’s mating ritual although not exactly in the podophilic sense familiar in a sub-set of humans.  In the spring mating season, the bird’s feet become a bright turquoise blue and, to demonstrate their health and vitality conspicuously they will display them to potential partners.  The job done, as their eggs hatch, the blue hue fades to something less vivid.  One aspect of their behaviour which amused the ornithologists who first observed it was that if among fishers unloading their catch, it tossed a small fish from the by-catch, a booby will take it and waddled off somewhere to enjoy it in solitude rather than gulping it down as in common in many species.  Like penguins, although ungainly on land, they are skilled plunge divers which used their streamlined bodies and air sacs “fly” through the water, catching their prey at high speed and they hunt in "packs", coordinating their movement to maximize the catch.  Boobies have been recorded diving from as high as 90 m (300 feet), their speed upon entry estimated at around 100 km/h (60 mph).

Boobies in time, in step.

Based on the use by mainstream internet sites (including nominally reputable news organizations), boob (more commonly in the plural as boobs) seems to have emerged as the preferred slang for breasts, probably because it seems the term women find most acceptable and the one they most often use, not infrequently as their default descriptor.  The origin appears to lie in bubby (plural bubbies), a slang term for the female breast dating from the 1680s which is thought to be imitative of a baby's cry or the sucking sound heard during lactation.  It was most associated with south-east England although that may reflect more extensive documentation rather than proof of regionalism.  Inherently anyway a form in oral use, the alternative pronunciations included buhb-ee, boo-bee & boob-ee so the evolution to boob was perhaps not unexpected although most dictionaries list the earliest known instance as a late 1930s Americanism with the back-formed clippings boob & boobs not appearing until the early post-war years, initially as a vulgarism, women not embracing use for decades although that their approval seems to have coincided with late second-wave feminism is presumably coincidental.

Fully loaded: Lindsay Lohan in boobie-top with crash helmet in Herbie: Fully Loaded (2005).

In fashion, the boobie top (less commonly as booby-top) is a style of clothing (including dresses) which in some way draws attention to or emphasizes the breasts.  The design is most associated with generous displays of cleavage or skin but is used also to refer to garments which wholly cover the breasts in such as way as to highlight the size, shape or movement.  In the industry, a “boobie top” differs from a “boob tube” in that while the former seeks to highlight the breasts as a feature (either by using the fabric tightly to shift the focus to the size and shape or with a cut which displays the cleavage component of the décolletage) while a “boob tube” is a different interpretation of the minimalist: it completely envelopes the breasts (ie little or no visible cleavage) but otherwise exposes the torso.

A “tube top” in the original style (left) and a “boob tube” (right), both now likely to be advertised as a “boob tube”.

The style was in 1972 first described as a “tube-top” (strapless and extend from the armpits to the naval; such garments had earlier been available but the name was new) and the companion “tube skirt” appeared the next season (again, a re-labeling).  The first “boob tubes” were advertised in 1977 and the early were all a truncated version of the “tube top” in that they wrapped only around the breasts); inherently it was a midriff-baring creation and could be thought of as a kind of strapless, bandeau bra designed for outdoor wear (on warmer days).  Constructed with elasticized fabrics, they were designed to be worn without a bra but, like all forms of structural engineering, physics does limit what's possible and they came later to be available also with a “built in bra”.  Others just choose boob tubes made with a thicker material so a strapless bra unobtrusively could be worn beneath but, VBS (visible bra-straps) no longer being a sin against fashion, some now choose a to make the bra part of the look.  In truth, the terms “tube top” & “boob tube” were all a bit misleading because it was only the material covering the breasts which tended toward a truly tubular bra with the rest being more or less flat and a better description might have been “flange” but this wouldn’t have had the same appeal in a boutique so “tubes” they became.  In product descriptions, the distinction between “tube top” and “boob tube” quickly became blurred and the latter tends now often to be used of both types. 

US Army booby trap messaging, 1942.  Such infections have for centuries been a significant part of military medicine because STIs often would reduce unit strength (ie "battle-ready" troops).

During World War II (1939-1945), the US military kept up with evolution of slang, something reflected in advertising which lent a new definition to "booby trap", a familiar concept in which soldiers were well-drilled.  Despite the efforts of padres, it was rare for commanders to attempt to impose morality and when on deployment it was common for there to be "authorized" brothels (often separate facilities for officers and other ranks) with the prostitutes subject to regular inspection by medical staff and allowed to practice their ancient profession only if the supervising doctor issued a "clean" certificate.  Until well into the twentieth century (and the beginning of the antibiotic era), it wasn't unusual for the losses of combat-ready troops to illness & disease to exceed those caused by battlefield causalities and although the numbers were dwarfed by conditions such as malaria, preventing and treating sexually transmitted diseases (STDs, then called venereal disease (VD)) was an important component of military medicine.  It wasn’t until the 1970s the initialism VD began to be replaced by STD (VD thought to have to have gained too many specific associations) but fortunately for AT&T, in 1951 they renamed their STD (Subscriber Toll Dialing) service (for long-distance phone calls) to DDD (Direct Distance Dialing), apparently for no better reason than the alliterative appeal although it's possible they just wanted to avoid mentioning “toll” with all that implies.  Many countries in the English-speaking world continued to use STD for the phone calls, even after the public health specialists had re-purposed the initialization.  In clinical use, STI (Sexually Transmitted Infection) seems now the preferred term.

The other booby trap: Helpful advertising circa 1950.

In Western legal systems, two aspects of consumer protection which greatly advanced in the twentieth century were product liability and “truth in advertising”.  What the changes in product liability did was break the nexus of “privity of contract”, meaning it was no longer required that to seek redress or compensation, an injured party had to be the purchaser of the defective goods.  That reform took shape during the inter-war years but “truth in advertising”, although an old concept enforced in contract law, really became a movement in the post-war years; it was designed to remove from commerce “deceptive or misleading” claims although advertising agencies still had a wide scope to be “economical with the truth” if they could make their assertions fit into the “mere puffery” rubric.  One field never policed was women’s shapewear (corsets and such) which, with a judicious placement of struts, elasticized panels, ribs and padding could variously make body parts appear curvier, straighter, smaller, larger or higher.  The Wonderbra (and its many imitators) was probably the best known example because among the many garments and devices it was the one which most dramatically deceived and misled.  Of all this trickery the law remained silent and the sage advice remained: caveat emptor.

Sanpaku

Sanpaku (pronounced san-pach-ew)

An eye in which the sclera (white of the eye) is visible on three sides of the iris rather than the usual two (left & right).

Pre 1700s: A borrowing from the Japanese 三白 (sanpaku) (three whites) or 三白眼 (sanpaku gan) (three-white eyes).  Sanpaku is a noun and sanpakuish is an adjective; the noun plural is sanpakus.

Sanpaku (三白) (three whites) & Sanpaku gan (三白眼) (three-white eyes) are Japanese terms from traditional Chinese & Japanese medicine and they describe the “condition” in which the white of the eye is visible either above or below the iris when looking straight ahead.  Although the word was popularized by Japanese educator and nutritionist Nyoichi “George” Ohsawa (1893–1966) when he published the book You Are All Sanpaku in 1965, the idea had existed in oriental medicine probably for centuries although it’s impossible accurately to determine its origin.  It was mentioned in the diaries of at least one nineteenth century US Navy physician but attracted no interest in the West until the release of Ohsawa san’s book.  In Western medicine the phenomenon is described as “lower scleral show” or “inferior scleral show”, terms which are merely descriptive because (1) it’s something thought within the range of normality, (2) is indicative of no other mental or physical states and thus (3) is generally not considered a medical condition requiring treatment and is attributed variously to (3a) normal variation in eyelid anatomy, (3b) transient facial expression or gaze direction, (3c) traumatic injury or (3d) age-related tissue changes.  There are orbital or eyelid conditions (the best known being a thyroid-related eye disease causing lid retraction) which can induce a sanpaku-like appearance but instances are vanishingly rare.  In short, the medicalization of sanpaku is thought a product of superstition so predictably, on social media, sanpaku eyes seem to have a cult following.

Sydney Sweeney (b 1997) displaying her Sanpaku inferior (sclera (white of the eye) visible below the iris), Met Gala, Metropolitan Museum of Art, Manhattan, New York City, May 2025.  Lovely though her eyes are, it may be not many have long focused on them.

In You Are All Sanpaku, Ohsawa san described sanpaku as a condition which indicated physical and mental imbalances and discussed its significance in relation to diet and overall well-being.  Historically, sanpaku is believed to have entered oriental medicine from the Japanese practice of “face-reading” and those with eyes observed thus were considered ill-fated and destined for a life filled with misfortune, culminating often with an early demise.  It gained a following on social media by the usual means: celebrity association.  Diana, Princess of Wales, President John Kennedy & Marilyn Munroe, all of whom died young, were all sanpakus and as Ohsawa san warned in You Are All Sanpaku: the eyes indicate someone's fate, signifying imminent danger or an “early and tragic end.”

Diana, Princess of Wales (1961-1997, far left), Marilyn Monroe (1926–1962, centre left), Billie Eilish (b 2001. centre right) and John Kennedy (JFK, 1917–1963; POTUS 1961-1963, far right).  Three died young in tragic circumstances but Ms Eilish remains fit and well.

The original basis of “face reading” isn’t known but as a diagnostic tool it focused on the matter of “balance”, something important also to the physicians of Antiquity who identified the “four humors”: flegmat (phlegm), sanguin (blood), coleric (yellow bile) & melanc (black bile) which were the causative agents of the four personality types, the phlegmatic, the sanguine, the choleric & the melancholic.  In the East, signs of sanpaku meant a man’s whole system (physical, physiological and spiritual) was out of balance, something caused by sins committed against the order of the universe, accounting for his sickness, unhappiness or insanity.  Ohsawa san noted that in the West, such folk had come to be called “accident prone” and they were the ones who should take note of the warning from sanpaku, nature’s tap on the shoulder.  A practical author of self-help texts, Ohsawa san recommended sanpaku eyes should be treated with a macrobiotic diet, focusing on brown rice and soybeans, something on which he had real expertise as the founder of the macrobiotic diet.

By their sanpaku you shall know them: Adolf Hitler (1889-1945; Führer (leader) and German head of government 1933-1945 & head of state 1934-1945, left), crooked Hillary Clinton (b 1947; US secretary of state 2009-2013, centre) and cult-leader Charles Manson (1934-2017, right).

Interestingly, the beliefs about sanpaku are culturally variable although universally it’s held the condition determines one's fate.  In the Japanese tradition those consequences are ill fate and misfortune while the Chinese associate sanpaku with good luck and wealth and this divergence has interested cultural anthropologists who study the symbolism and mythologies of different societies.  The tradition divides the eyes into "yin sanpaku" and "yang sanpaku", the roots of this the ancient Chinese concept of yin & yang, representing the duality of opposing yet complementary forces in the universe.  Yin and Yang are fundamental concepts in Chinese philosophy and represent complementary and interconnected aspects of the universe. Yin is associated with qualities such as darkness, femininity, passivity, and coldness, while Yang is associated with light, masculinity, activity, and warmth. They’re seen as opposing forces that are in a constant state of dynamic balance and they exist within all phenomena, including human physiology, nature and society.  In this they differ from the (wholly un-related) concept in particle physics of matter and anti-matter.  Matter is the familiar stuff which is much of the physical universe (particles such as protons, neutrons, and electrons) while anti-matter consists of particles with the same mass as their matter counterparts but carrying an opposite charges.  When matter and anti-matter particles come into contact, they can annihilate each other, releasing energy.  Ying and Yang, mutually dependent, live in peaceful co-existence.

The Mean Girls (2004) crew demonstrate the range:  Rachel McAdams (b 1978, far left) & Lindsay Lohan (b 1986, centre-left) are in the part of the population who are either not sanpakus or the effect is imperceptible.  Lacey Chabert (b 1982, centre-right) is in the group with a separation around 1 mm while Amanda Seyfried (b 1985, far right) displays up to 2 mm depending on her expression.

A quadrilateral meeting to discuss German war guilt reparations and allied debts accumulated during World War I (1914-1918): Raymond Poincaré (1860–1934; President of France 1913-1920, far left), Andrew Bonar Law (1858–1923; Prime Minister of the United Kingdom 1922-1923, centre-left), Benito Mussolini (1883-1945; Duce (leader) & Prime-Minister of Italy 1922-1943, centre right) and Georges Theunis (1873–1966; Prime Minister of Belgium 1921-1925 & 1934-1935, far right), 10 Downing Street, London, December 1922.

Before it became a meme, this was an obscure photograph which until the twenty-first century had appeared only in some specialist history texts but as the internet achieved critical mass, memes became a thing and Mussolini’s sanpaku eyes were a gift for the meme-makers, most captions suggesting the duce may have had a sudden premonition of his own unfortunate end although others offered: “I feel naked without a moustache”, “I think I have imposter syndrome”, “Oh God, I just pooped my pants”, “I know one of these men is a Freemason but I don't know which” and “I wonder if they can tell I've smoked some weed”.  However, although not noted as a mystic, he may have sensed another's impending death, “sitteth at the right hand”, Andrew Bonar Law then having only months to live.

Princess Beatrice, Mrs Edoardo Mapelli Mozzi (b 1988).  Until she appeared at a royal wedding in the fascinator she made famous (some humorless souls would have said infamous), she was most noted for her lovely sanpaku eyes.

In Japanese face reading, yang sanpaku eyes (white part visible above the iris) reveal a person's dark and sinister nature, the eyes indicating the unstable mental state suffered by individuals exhibiting uncontrollable aggression, such as psychopathic murderers or serial killers.  Yin Sanpaku Eyes (sclera visible below the iris) signify a different physical or mental imbalance, one caused by the abuse of drugs, alcohol, and sugar which disrupt the body's equilibrium.  Although discouraged by all in the profession except the odd, entrepreneurial cosmetic surgeon, treatment options are available to “correct” scleral show and the most effect treatment is aesthetic plastic surgery, specifically the procedure called blepharoplasty, which can correct the appearance of the eyes.  The construct of blepharoplasty was blepharo- +‎ -plasty.  Blepharo- was from the New Latin, from the Ancient Greek βλέφαρον (blépharon) (eyelid; a feature resembling an eyelid) and -plasty was from the Ancient Greek πλαστός (plastós) (molded, formed) which now has the special meaning in medicine meaning "repair, restoration or re-shaping of part of the body with a surgical procedure".

Alexandria Ocasio-Cortez (AOC, b 1989, US Representative (Democrat-New York) since 2019 and one of "the squad") displaying her Sanpaku superior (sclera visible above the iris).

Casual observation suggests sanpaku eyes are far from rare and there are said to be three classes: (1) those with at least a .25 mm (.0098 inch) space between the iris and the upper and lower eyelids, (2) those with a separation of 1 (.0394 inch) mm and (3) those with a gap of 2 mm (.0787 inch) or more.  The concition need not manifest as something symmetrical (in the vertical axis), the two elements being (1) Sanpaku inferior: white visible below the iris and (2) Sanpaku superior: white visible above the iris, the latter said often induced when a subject is frightened or physiologically stressed).  However although “estimates” have been published, neither the prevalence of the condition nor the distribution within the three (unofficial) groups have ever been the subject of a reputable epidemiological study; because “sanpaku eyes” is not a recognised medical or anthropometric category; funding would thus be hard to secure although, as a purely observational and statistical exercise, presumably not many ethics departments would much be troubled.  So, lacking a defined diagnostic entry, there is no standardised measurement threshold and estimates of prevalence are thus almost certainly speculative and thus unreliable.  Those with sanpaku eyes should not too much dwell on the numbers and instead flutter their eyelashes and enjoy the admiring glances.

Mean Girls four-way phone call: Eye-rolls (Amanda Seyfried, top right) don't count, a sanpaku defined only by separation maintained when looking ahead or to the side.

Humans are not the only species with a sclera but we are untypical in it being so visible.  That humans even have white scleras has interested linguistic anthropologists, evolutionary biologists and other researchers, some offering the Cooperative Eye Hypothesis which suggested the distinctive appearance evolved as a mechanism with non-verbal communication could be enhanced.  According to this conjecture, the high visibility of the iris & pupil against the white background allows an interlocutor more easily to track eye movements, helping individuals to understand where others are looking during interactions.  Observational studies revealed the way humans and other great apes move their heads and eyes in different ways, humans relying more on eye movements than head movements to see where someone else is looking.  Apes, without the white component in their eyes, tend more to move the whole head.  Not all support the "cooperative eye" faction but it’s an interesting approach to understanding the evolutionary significance of the human eye's appearance and the sophistication of communication is certainly a noted difference between humans and apes.

If the human eye lacked a white sclera it would mean the “messaging” in facial expressions (a non-verbal clue in communication) would have evolved a little differently; Paris Hilton (b 1981) illustrates (digitally altered image).  Ms Hilton has brown eyes but often wears blue contact lens.

As far as is known, all living creatures on Earth came ultimately from a single event which can be said to be the origin of life because at this time, there is no evidence of other living things anywhere in the universe.  Everything else is speculative; life may have started (or arrived) here many other times but for whatever reason not thrived and around the universe there may be many forms of life; some may be more advanced than us or we may be unique in our scientific and technological mastery.  The single point of origin is why we share elements of DNA (Deoxyribonucleic acid, the so-called “building-blocks of life”) with our cats, dogs, goldfish and bananas so, unsurprisingly, in living creatures, eyes are common, often in pairs but unlike those in humans, not all are out-growths of a brain although, in many of the lineages of the Metazoa they are neurally derived and remain tightly integrated with the central nervous system.

A nice pair of boobies.  Charmingly, blue-footed boobies are known to be monogamous, pairs often staying together for life.  Like us, birds are two eyed vertebrates although except for the old outlier (like owls) their eyes, for good reasons, shifted to the sides.  Note how the booby’s eye differs from that of a human.

As a general principle it all depended on the developmental origin and phylogeny (the evolutionary history of groups of organisms).  In vertebrates (mammals, birds, fish etc), the eye evolved as an evagination (a growth outward) of the forebrain during embryogenesis (the process by which an embryo is formed and develops).  Cephalopods (octopus, squid etc) differ in that while the optic lobes of the brain are large and closely connected, the eye is not literally a brain protrusion; thus, while neurally integrated, the eyes are not brain outgrowths.  Arthropods (insects, crustaceans and such) have compound eyes formed from ectodermal (of the The outermost of the three tissue layers in the embryo of a metazoan animal) tissues which connect to the brain via optic nerves and are thus also neurally connected but not developmental extensions of the brain itself.  Many cnidarians (such as the box jellyfish) possess complex lens eyes but lack a centralized brain, their eyes peripheral sensory structures connecting to nerve rings rather than a true brain.  Many invertebrates have relatively simple photoreceptors which can be thought of as “eyespots” which can be distributed across body tissues, the best contemporary comparison probably the sensors now so ubiquitous in electronic devices.

Boobies, one step at a time.

A booby is a seabird in the genus Sula, part of the Sulidae family.  Boobies are closely related to the gannets (Morus), which were formerly included in Sula, the genus created in 1760 by the French naturalist Mathurin Jacques Brisson (1723-1806).  The name was derived from súla, the Old Norse and Icelandic word for the other member of the family Sulidae, the gannet.  The English name booby was based on the Spanish bobo (stupid) as the tame birds often landed on board sailing ships, where they were easily captured and eaten.  As well as a popular addition to the diet of sailors for whom meat other than fish was a rarity, it was fortuitous for many, the Admiralty's archives revealing boobies often mentioned as having been caught and eaten by shipwrecked sailors.

Mr Andrew Mountbatten Windsor in police car, under arrest, February, 2026.

If humans had eyes free of a white sclera (like the booby and many birds), our appearance would be quite different, illustrated by a digitally edited image of (the former prince/duke/admiral etc) Andrew-Mountbatten Windsor (b 1960), rendered as a cartoon by Vovsoft.  However, the use of that image to demonstrate the point may not have been the best choice because, in the original, his expression didn’t appear greatly different.

As well as charming eyes, boobies also have interesting feet.  The distinctive blue feet (the result of pigments ingested from their diet of fish) also play a part in the bobby’s mating ritual although not exactly in the podophilic sense familiar in a sub-set of humans.  In the spring mating season, the bird’s feet become a bright turquoise blue and, to demonstrate their health and vitality, conspicuously they will display them to potential partners.  The job done, as their eggs hatch, the blue hue fades to something less vivid.  One aspect of their behaviour which amused the ornithologists who first observed it was that if among fishers unloading their catch, it tossed a small fish from the by-catch, a booby will take it and waddle off somewhere to enjoy it in solitude rather than gulping it down as in common in many species.  Like penguins, although ungainly on land, they are skilled plunge divers which used their streamlined bodies and air sacs “fly” through the water, catching their prey at high speed and they hunt in "packs", coordinating their movement to maximize the catch.  Boobies have been recorded diving from as high as 90 m (300 feet), their speed upon entry estimated at around 100 km/h (60 mph).

Nipple

Nipple (pronounced nip-uhl)

(1) In anatomy, the small, conical projection near the center of the areola of each mammary gland (breast); also called mamilla, papilla or teat.  In females, the nipple contains the outlets of the milk ducts.

(2) Something resembling (often in scaled-up form) a female’s nipple, as the mouthpiece of a nursing bottle or pacifier (in some places an informal word for a pacifier).

(3) Any device resembling a nipple in shape or function.

(4) A mechanical device through which liquids or gases can be passed in a regulated manner; as grease nipple a small drilled bush, usually screwed into a bearing (or other component needing periodic replenishment of a greasing agent) through which grease is introduced.

(5) In plumbing & gas-fitting, a short piece of pipe with threads on each end, used for joining valves.

(6) Any small physical protrusion on an automotive, a machine part or any other part that fits into a groove on another part (now rare).

(7) In computer (hardware) slang, the pointing device in the centre of the keyboard of certain laptops, partially fulfilling the functionality of a mouse, trackball or track-pad (although some (male) users insist it is called “the clit”).

(8) In pre-modern ballistics, a perforated segment that fits into part of the breech of a muzzle-loading gun, on which the percussion cap is fixed.

(9) In the design of bicycles, an internally threaded piece which holds a bicycle spoke in place on the rim.

(10) To fit (a baby's bottle etc) with a nipple (archaic).

(11) To give one's nipple to (a baby) to allow breastfeeding (archaic).

1520–1530: From the Middle English nipple, from the earlier neble, nibble, nible & nepil (all of which may be derived from nib & neb (tip; point).  The Old English nypel (elephant’s trunk) was formed analogously as “a protuberance from one's neb”.  The late twelfth century pap & pappe (nipple of a woman's breast) was first attested in Northern and Midlands writing, probably from a Scandinavian source (there’s no record in the Old Norse but there was the dialectal Swedish pappe), from the primitive Indo-European imitative root pap- (to swell), the source also of the Latin papilla (nipple) which may have influenced the English papula (a swelling, pimple) and the Lithuanian papas (nipple).  The spellings neple, nypil, nyppell, neapel, neaple, neble and all obsolete.  Nipple is a noun & verb, nippling is a verb and nippleless & nippled are adjectives; the noun plural is nipples.

One extinct verb which, perhaps surprisingly, wasn’t revived even after it became apparent trends of use on the internet suggested it might be helpful, was expapillate (bare the breasts to the nipples), identified by the outstandingly good Online Etymology Dictionary as an entry in an early English "dictionary", published in eleven editions between 1623 and the 1650s.  The book was neither a prescriptive or descriptive work encompassing the whole language but was described as “An Interpreter of Hard English Words”, an approach others later took including Wilfred Funk (1883–1965) in his Word Origins and Their Romantic Stories (1950), the idea being to focus on the less known or more obscure.  The construct of expapillate was ex- + papillate.  The ex- prefix was from the Middle English, from words borrowed from the Middle French, from the Latin ex (out of, from), from the primitive Indo-European eǵ- & eǵs- (out).  It was cognate with the Ancient Greek ἐξ (ex) (out of, from), the Transalpine Gaulish ex- (out), the Old Irish ess- (out), the Old Church Slavonic изъ (izŭ) (out) & the Russian из (iz) (from, out of).  The “x” in “ex-“, sometimes is elided before certain constants, reduced to e- (eg ejaculate).  The Latin papillate was the vocative masculine singular of papillātus (having nipples or buds; shaped like a nipple or bud) and was used in English as a transitive verb (to cover with papillae) and intransitive verb (to take the form of a papilla, or of papillae).

In 1974, The British Medical Journal (BMJ) used the term "guitar nipple" to describe "the irritation to the breast that can occur from the pressure of the guitar against the body."  That was indicative of the trend in the English-speaking world for newly-identified (and sometimes novel) conditions to be constructed with English elements, rather than the Latin historically used.  In the same spirit, two years later a contributor to the JAMA (Journal of the American Medical Association) was more imaginative still, coining "hot pants syndrome" when documenting cases in which a burn to the skin had been induced by a patient carrying a battery-powered transistor radio in the pocket of their trousers.  There was also in 1978 the New England Journal of Medicine's (NEJM) "disco digit" which referred to "a sore or infected finger caused by too much finger snapping while dancing."    

Jaguar tool kit supplied with 1966 E-Type (XKE, 1961-1974).  The grease gun (left) was used to force grease into various components through grease nipples.  This was a regular part of automobile maintenance until recent decades and is still a feature of the servicing schedules of heavy vehicles and machinery.

Until the 1970s, it was common for cars to need periodic “greasing” of certain components, a process which involved attaching a “grease gun” to a “grease nipple” which permanently was mounted on the relevant part; manually, the gun (usually a type of plunger) was used to force grease through the nipple.  This was undertaken either by owners, chauffeurs or mechanics at service stations who routinely would perform an “oil and grease” which included (all or some of): changing the engine, gearbox & differential oil, replacing the filter(s) and greasing all required grease points.  On more expensive vehicles, “one-shot lubrication” systems (known also as CLS (centralized lubrication systems) & ALS (automated lubrication systems)) were introduced during the 1920s, the technology adapted from the hardware used in aviation.  Although some attempts were made to create wholly automated systems, the most widely used were those which incorporated a foot pump for the driver to press at specified intervals; this action forced grease from a central reservoir to the required points.  Being a sealed system, this meant that nowhere in the system were grease nipples required (although some often still were included in components which demanded less frequent attention or were of a design which made their inclusion in the CLS plumbing too difficult.  ALS systems remain common in many places including heavy machinery, ships and the industrial plant used in factories, power plants etc.

The standard grease nipple used on the Jaguar E-Type (XKE) (left) and a diagram with a legend listing the E-Type's oil, brake fluid, transmission fluid and grease nipple locations.  The grease nipples are indicated by the obelus (†).  In automobiles, by the 1970s the need for multiple grease points or one-shot lubrication had begun to be eliminated (although some older designs maintained the legacy for decades) as advances in metallurgy and lubrication technology permitted the development of sealed, maintenance-free components which are “packed with grease" and thus “lubricated for life”.  However, for heavy-duty machines such as trucks and earth-moving equipment operating in adverse conditions, there are often still components demanding regular greasing and thus grease nipples are still a thing.

Also a thing is the “nipple orgasm”, at least for those for whom a nipple is a “hardwired erogenous zone” responsive to stimulation; that's a sub-set of the population and there are probably no reliable estimates of the prevalence.  Although in humans orgasms are typically thought an ejaculative, vaginal or clitoral phenomenon, sexologists list more than a dozen types, varying in instance or intensity based on the individual, the circumstances and sensitivity to stimulation.  When warming to the topic, these specialists will also discuss the details of “energetic orgasms” (which can, without physical touch, be triggered by meditation or fantasy) and “sleep orgasms”, said to have been experienced by an “estimated” 37% of women and 83% of men.  Quite how those numbers were obtained isn’t clear but helpfully, in 2011, New Jersey-based neuroscientist, psychotherapist & sex therapist Dr Nan Wise (b 1967) undertook a study to reveal how nipple stimulation affects the brain.  What Dr Wise wanted to build on was the existing understanding “…the clitoris, vagina and cervix are mapped on the genital sensory cortex”, something which sits between the brain’s two hemispheres and which she labels “hedonistic pleasure zone” or, more illustratively “the crotch of the brain”.

What Dr Wise did was have the study’s subjects stimulated with various mental fantasies while in an MRI (magnetic resonance imaging) machine, allowing her team to observe how distinct parts of the brain responded to various experiences.  The results were generally in line with expectations except that nipple stimulation proved an outlier.  While her hypothesis had been there would have been activity in the brain region associated with chest sensation (the theory being nipple orgasms might occur because stimulation of the organ releases oxytocin, a hormone that can cause uterine contractions, potentially leading to vaginal orgasm), instead it was found nipple stimulation activated the genital sensory cortex itself, leading Dr Wise to conclude: “The nipples are a hardwired erogenous zone, like the genitals, when nipples are stimulated, the brain gets activated, and regions processing the sensation communicate with those responsible for pleasure.”  This tied in with one of the accepted dictums in neuroscience: “neurons that fire together wire together” and the study’s findings do seem to suggest it is plausible there exists a neural pathway between the nipples and the genitals.  Sexologists however caution individual responses will vary and techniques which produce pleasing results for one will induce no response in others.  So, YMMV (your mileage many vary) and the sexologists recommend experimentation.

The SKIMS Nipple Bra

Wearing it well: Kim Kardashian in SKIMS "nipple bra"

The admirable (and much admired) Kim Kardashian (b 1980) in October 2023 announced the latest addition to her SKIMS product line: a bra with “built in” nipples, designed to be prominent enough obviously to protrude through clothing.  Said to offer the “ultimate shock factor” (although after the shocks of the last decade-odd, some of which those associated with Kardashian clan have instigated, that may be hyperbolic) the viewer response suggested many weren’t certain whether product was real or a gimmick designed to attract publicity.  It certainly attracted publicity but turned out to be real (with SKIMS part number).  Even if the concept wasn't as “innovative” as claimed, the promotional approach in the video certainly was, the spin being that if women can don a bra to emulate one of the more pleasing consequences of cold weather, the psychological effect might be they’ll be less inclined to turn on (or up) the air-conditioner, thus reducing energy use, thereby lowering carbon emissions, meaning a lesser contribution to the concentration of atmospheric CO₂ (and other greenhouse gasses) which causes accelerated climate change including higher temperatures.  That seems to be drawing a long bow but doubtlessly somewhere there will be published research which can be spun to support (or at least not disprove) each of the steps in the internal Kardashian logic.  It was certainly an example of the way commerce is attempting to monetize concerns about climate change.  

As Ms Kardashian put it: “The earth’s temperature is getting hotter and hotter. Sea levels are rising. The ice sheets are shrinking. I’m no scientist, but I believe everyone can do their skillset to do their part.  That’s why I’m introducing a brand-new bra with a built-in nipple so matter how hot it is, you’ll always look cold.  Some days are hard but these nipples are harder. And unlike the icebergs, these aren’t going anywhere.”  The bra was said to be available in six colors with a stated “10% of sales” (the exact math of that calculation not disclosed) to be a “one off donation” to 1% for the Planet (a multi-national collective of businesses pledged to gifting at least 1% of their annual revenue to “environmental causes”).  So it sounded like a real product with a real part-number (not then listed) but there were those who thought the release date being Halloween (October 31) might suggest it might not be wholly serious.  Even had it not been real, it would have been a good case-study for students of such things learning the craft of the promotional video clip, the only opportunity missed being Ms Kardashian should first have appeared in a scientist's white lab coat, peeling it off as she spoke the words "I'm no scientist".  The part-number's later appearance in the catalogue verified the availability.   

The 1970s: Rudi's sheer bra (left & right) and the original Nipple Bra.

It’s not a new idea.  In the early 1970s, several manufacturers advertised a line of bras with cups in a sheer fabric which offered coverage and support (within a limited mass range) but clung to the nipples' definition, the most celebrated being those of Austrian-born Rudolf "Rudi" Gernreich (1922–1985), remembered as the "designer" of the "monokini" (ie a bikini supplied without the top part).  This approach was for those who wanted to display the profile of their own nipples.  The "Nipple Bra" offered enhanced engineering was the ancestor of the SKIMS bra in that rather than using, as Herr Gernreich did, the human body's "built-in" nipples, it provided some.  The pitch all those decades ago was aimed at those who wanted to look “provocative” and in 1975 to achieve that the “Nipple Bra” cost US$20 (US$114.42 adjusted for 2023) so Ms Kardashian setting her price at US$120.00 seems not unreasonable.  The somewhat obtuse contribution to averting climate change aside, reaction to the product included the observation the bra will provide permanently “perfectly aligned nipples”, something not always achieved by the real things because, like most body parts, between left and right, there’s often some variation in size, shape, direction or distance from the ground.  Like many aspects of structural engineering, “perfect alignment” is achieved often with slight adjustments to variables like strap length.

Rudi not required: Lindsay Lohan displays perfect alignment, Venice Beach, Los Angeles, California, 2011.

In the United States, patent law exists to protect inventions, processes, and methods rather than abstract ideas and the general criteria (interpreted with some latitude) for eligibility is that an invention should be novel, non-obvious, and useful.  What does qualify is the implementation or embodiment of an idea in a tangible form so while a mere thought or concept can't be patented, a specific application or embodiment of that idea can be and this includes a new product, process, machine, or composition of matter.  Within all that, patents can be granted to cover improvements made to existing inventions.  Whether SKIMS have applied for or been granted a patent isn't clear but several for products in this vein have been granted over the last 50-odd years.  On 24 August 1976 Mr Jakob E. Schmidt of Charlestown, Indiana was granted U.S. patent #3976083 (Brassiere Having Simulated Nipples) as well as #4241737 & #4127128 covering “Brassiere Having Simulated Nipples and Attachable-Detachable Nipple Simulators”.

Conceptual drawing supplied with application for patent #3976083 (Brassiere Having Simulated Nipples), granted 24 August 1976.  The patent expired 24 August 1993.

The abstract filed with the application for #3976083 included: A brassiere is disclosed having cups which are provided with a nipple-like protuberance simulating the bulge of a natural nipple. The nipple-like bulge or protuberance may be a built-in component of the brassiere, usually situated under the fabric of the cup; a component which is permanently attached to the external surface of the brassiere cop; or an individual structure which may be attached to or detached from the brassiere cup as will, by means of several linkage and attachment mechanisms.  Simulated nipples for a brassiere would offer an acceptable compromise for ladies who do not wish to go without a brassiere and a welcome release from the subconscious effects of the suppression brought on by wearing brassieres of the types variously available, which obliterate the nipple.  That’s informative but Ms Kardashian might have phrased things in a more "Tik-Tok friendly" way. 

A nipple patch (left), the nipple patch writ large to function as a special-purpose bra (centre) and the advertising concept (right) which could be used by the manufacturers of either the "nipple bra" or the "nipple patch".  All that would be required is transposing the photographs, depending on whether the object was to display or conceal.

However, while one niche market will like the idea of being “so provocative”, there are others who find the sight of their own nipples “too provocative” and for this niche, there are ranges of products which offer coverage and concealment, smoothing away any suggestion of a nipple with patches which can be worn under bras with cups of even the most sheer fabric.  Self-adhesive (using a skin-friendly temporary glue), they can also be used without a bra and the same technology has been adapted to larger-scale units which actually function as a bra.  Marketed as being ideal to be used when wearing “backless” dresses or tops, they’re also said to be easier to use than the “fashion tape” (better known in the industry as “booby tape” or “tit tape”), especially if being self-applied.  Helpfully, if one changes one’s mind after having smoothed away the nipples, stick-on nipples are available in a range of styles and colors.

Piece from Miguel Castro Freitas’s “Stardust Aphrodite” collection for Mugler, Paris Fashion Week, October. 2025.

Miguel Castro Freitas’s (b 1980) first collection for Mugler was called “Stardust Aphrodite” and the designer described the pieces as “a trilogy of glorified clichés”, the three elements being (1) oversize and bulky, with big fluffy fabrics or shoulder pads, (2) severely tailored with extreme hourglass figures or (3) lightweight, sheer dresses; critics detected some overlap in the use of the motifs.  Although there were a number of nods to Mugler’s historic use of materials in bulk for dramatic effect, the collection otherwise tended to the “less”, one eye catching piece a gown with sparkly silver stars, its straps hung from bare-breasted nipple piercings.  To re-assure those whose toes had curled, critics noted that one was made from “a very lightweight fabric”.  The technique had be seen before, a “nipple grown” the best-remembered thing from the catwalk from one of Mugler’s shows in 1998 and this year’s model was an acknowledged homage but apart from that, it certainly was on-theme, Victoria’s Secret unlikely to see much business generated from those taken with Stardust Aphrodite.

A fragment from Fashion Feed’s take on Paris Fashion Week, 2025.

Of course the point of the catwalk is it makes it possible to see a garment in motion, interacting with the body.  That can be transformative: an outfit that on a hanger or mannequin seemed bland or lifeless can, when worn by a strutting model, come alive although equally, one which seemed admirable when static might reveal flaws of design or in construction once on the move.  Had the already infamous “nipple-piercing gown” been assessed purely on the technical criteria usually applied it would have been judged a success because the suspended sparkly chiffon flowed and swished as the designer knew it would but that achievement wasn’t much commented upon because the usual factions quickly were posting, the l'art pour l'art (art for art's sake) crowd calling the piece “an artistic vision” and dismissing criticism as the unwanted intrusion of a resurgent “purity culture” while those who disapproved called it “inappropriate” and yet another example of the way women’s bodies are exploited for the benefit of the “male gaze”.

One perhaps daring observation was that despite “many of the biggest names in women’s fashion being gay men… their designs often over-sexualise women instead of empowering them.”  Quite how much of the collective energy of gay men over the years been devoted to empowering women isn't known but Indian fashion commentator Pranjal Jain (b 2001) seemed to speak for her faction by adding that having a model parade “…a topless dress down the runway” and presenting it homage to the original of a quarter-century earlier was absurd because in the particular social & political context of the late 1990s such a dress could be understood as something “sensuous and provocative” but in 2025, “…what the fuck was the topless dress doing next to structured blazers and mini dresses?  I can tell you, the dress was a social media stunt engineered for virality.  Yet again, a man using a woman’s body for shock value.”  “Here”, she concluded, “is a perfect example of how fashion is political and historical, because context matters.”  As it has been for centuries, the critical deconstruction of frocks remains a serious matter.

Chappell Roan on the red carpet, Grammy Awards, Crypto.com Arena, Los Angeles, California, February 2026.  The rich auburn hair worked well with the hues of the gown and body art.

Even if Mugler’s “Stardust Aphrodite” didn’t at once migrate from the Paris catwalk to high street stores, the house didn’t abandon the motif and in February 2026, singer Chappell Roan (stage name of Kayleigh Rose Amstutz, b 1998) wore another of Mugler's interpretations (this time a burgundy gown) for the walk down the red carpet at the 68^th Annual Grammy Awards.  Predictably the event’s most publicized outfit, men everywhere doubtless were intrigued at the possibilities but the immediate reaction of women, regardless of their views of the aesthetic, may have been an involuntary curling of the toes as they imagined donning the gown.  That phenomenon is known as “mirror-touch synesthesia” which describes the experience when, upon observing another individual being touched or injured, a corresponding tactile or pain sensation is elicited in the anatomically matching location in the observer’s own body.  It’s very common but is a spectrum condition, most experiencing it as momentary sensation but in rare cases there have been patients for whom the effects have been long-lasting.  Technically, it’s triggered by a (usually temporary) reduction in the “self–other distinction” at the neural processing level, the causes thought to include (1) an heightened cross-activation between the visual and somatosensory cortices and (2) hyperactive or atypical functioning of the brain’s mirror neuron system.  There seems to be evidence an individual’s susceptibility to mirror-touch synesthesia is more significant in frequency of occurrence than the perception of the extent of the sensation (eg severity of an injury) witnessed.

Mirror-touch synesthesia is quite specific in its “virtual emulation” and differs from the vicarious responses (typically, a flinching when seeing someone suffer an injury) in being usually qualitatively stronger and manifested by a location-specific somatic sensation; it may run in parallel with emotional empathy (which happens typically without the literal bodily sensation) but is a separate phenomenon.  There are of course exceptions and the traditional (probably culturally obligatory) reaction of cricketers seeing a batsman struck “in the groin region” by a ball (delivered sometimes at 90 mph (145 km/h) or more) is one of mirth rather than empathy.

Drawing the lens: Chappell Roan photographed in front of the backdrop.

It would however seem the toes of mirror-touch synesthetes may uncurl because in the many photographs and video clips circulated, Ms Roan appeared not at all discomforted and the physics of that would have been determined by (1) the use of faux nipple piercings, (2) the lightweight fabric and (3) the gathering at the waist, ensuring each nipple had to bear the weight only of a few square inches of material.  No doubt pleased (if not surprised) by the interest generated, Ms Roan insisted it was not “that outrageous of an outfit”, adding “the look’s actually so awesome and weird” before concluding “I recommend just exercising your free will; it’s really fun and silly.”  The look was complimented with temporary body art, an extensive lace panel spread over her bare back with a pony on the chest, both credited to artist Jenny Collins of Puppy Puppy Playtime; the gold choker and earrings were by Buccellati.  Perhaps disappointing some, the outfit made only a one-off appearance on the red carpet, Ms Roan changing into something warmer when serving as an award-presenter.

Skims Ultimate Pierced Nipple Push-up Bra.

Of course, for such gowns to work (and that really is the correct expression), it relies on the wearer's nipples having appropriate fittings and these can be real (as body-piercings) or faux (attached with an adhesive or clamping device, the latter on the model of “clip-on” earrings).  However, what the use of light-weight fabrics should make possible is the material's attachment directly to the nipples with either a transparent surgical-grade glue or strategically placed double-sided tape ("boob-tape" or "tit-tape" in the jargon) but some of the effect would be lost because of the extent of the surface area of skin such adhesives would require.  More to the point, were it not done with genuine fittings (piercings or clamed-on), some of the “edginess” would be lost and it was this vibe Skims picked up on in the promotional video for “The Ultimate Pierced Nipple Push-up Bra”.  The tag line was: “Our sexiest bra gets even hotter with a faux nipple piercing design so you can get the ‘Ooo’ without the ouch!” and there’s no reason why, for certain events (if not the street), a Mugleresque gown couldn’t be hung from the bra’s fittings.  Done well, it could look good although Ms Jain likely would remain unimpressed.

Skims promotional video: “The Ultimate Pierced Nipple Push-up Bra”.