Adjective
Used other than figuratively or idiomatically: see four-letter: containing four letters.
Consisting of or characterised by swear words and profanity.
a four-letter reply, a four-letter insult, a four-letter tirade
Good authors, too, who once knew better words Now only use four-letter words Writing prose - Anything goes. Cole Porter
Fame is a four-letter word; and like tape or zoom or face or pain or life or love, what ultimately matters is what we do with it. Fred Rogers
Life is a four-letter word. Lenny Bruce
The thing is, acoustic could be like a four-letter word to a lot of kids. Billie Joe Armstrong
Censorship feeds the dirty mind more than the four-letter word itself. Dick Cavett
Your Highness is a juvenile excrescence that feels like the work of 11-year-old boys in love with dungeons, dragons, warrior women, pot, boobs and four-letter words. One of the heroes even wears the penis of a minotaur on a string around his neck. I hate it when that happens. Roger Ebert