The term four-letter word serves as a euphemism for words that are often considered profane or offensive.
The designation "four-letter" arises from the observation that many (though not all) popular or slang terms related to excretory functions, sexual activity, genitalia, blasphemies, and terms linked to Hell or damnation are incidentally four-character monosyllables. Notably, the term "four-letter word" does not strictly refer to words containing exactly four letters.[1][2][3]
The phrase has been in use in both the United States and the United Kingdom since at least 1886.[4]
Certain "four-letter words" have multiple meanings (some serving as given names) and usually only offend when used in their vulgar senses. Examples include: cock, dick, knob, muff, puss, shag (UK), and toss (UK). A borderline category includes words that are euphemistic evasions of "stronger" words and those that happen to be short, with both an expletive sound to some listeners and a sexual or excretory meaning (many also have other, non-vulgar meanings): butt (US), crud, darn, dump, heck, poop (US), slag (UK, NZ, AUS), slut, and turd.
Finally, some four-letter terms with limited usage can be considered offensive within the regional dialect they are used, such as mong and mary.
Occasionally, the phrase "four-letter word" is humorously used to describe common words composed of four letters. Examples include the word work, implying that work can be unpleasant, or the game of golf, jokingly referred to as a four-letter word when a player's pastime becomes an exercise in frustration. In 1993, Charlotte Observer journalist Doug Robarchek noted how many U.S. politicians have names with four letters, humorously observing, "Ever notice how many U.S. politicians have names that are also four-letter words? Ford, Dole, Duke, Bush, Gore ... and how many make us think of four-letter words?"[5]
Similar euphemisms in other languages
Chinese: The term 三字經 (lit. Three Character Classic) is used to describe swearing, as many such phrases in Chinese consist of three characters.
Dutch: A similar tradition occurs with "three-letter words", e.g. kut ("cunt"/"twat"), pik and lul ("cock"/"dick"/"prick").
Finnish: Rude words tend to be five-letter words, like the common swear word perse meaning "arse", or paska meaning "shit". Other offensive five-letter words refer to the genital region, eg. kulli and kyrpä ("cock"/"dick"/"prick"), along with pillu and vittu ("twat"/"cunt").
French: the word merde ("shit") is sometimes referred to as le mot de cinq lettres ("the five-letter word"), or le mot de Cambronne. Also, profanities in French are usually called gros mots (coarse words).
German: the phrase Setz dich auf deine vier Buchstaben! ("sit down on your four letters") is mainly used speaking to children, as it refers to the word Popo, meaning "rump" in baby talk. A variant, Setz dich auf deine fünf Buchstaben! ("sit down on your five letters"), alludes to the vulgar use of the word Arsch, meaning "arse" (UK) or "ass" (US).
Latin: a common insult used to be Es vir trium litterarum, meaning "you are a man of three letters". The underlying implication was that the addressed was a fur, meaning "thief", although if challenged, the speaker could always claim he simply meant vir, that is, "man".
Polish: the word dupa ("arse"/"ass") is called cztery litery ("the four letters"). Historically, also kiep, which formerly used to be a taboo word meaning "female genitals", but presently is a mild or humorous insult meaning "a fool" or a modern slang term for a cigarette. There is also a phrase Siadaj na cztery litery (sit down on your four letter), meaning sit on your arse.
Russian: the word хуй ("cock"/"dick"/"prick"), the most common obscenity, is called "the three-letter word" (russ.: "слово из трёх букв") or just "three letters" (russ.: "три буквы") and is one of the key words of the "Russian mat".
In popular culture
Generic references, not specifying the word:
Cole Porter's 1934 song "Anything Goes" includes the line "Good authors too who once knew better words, now only use four-letter words writing prose. Anything goes."
Chocolate Starfish have a track called "Four Letter Word" on their eponymous album.
The song "Irresistible" by Fall Out Boy features the line "You know I give my love a four-letter name".
In the 2019 BBC-HBO mini-series Years and Years written by Russell T Davies, after controversialist businesswoman Vivienne Rook gains popularity by claiming that she "doesn't give a fuck" about the Israeli-Palestinian conflict whilst on Question Time and subsequently railing against being censored, she establishes the populist, far-right Four Star Party, whose symbol is four asterisks.
A specified word that actually has four letters:
Love:
