The story
Coined by American comedian George Carlin, when he listed the words in his 1972 monologue "Seven Words You Can Never Say on Television".
Etymology from Wiktionary, CC BY-SA 4.0.
seven dirty words
Today it means: A parody of seven deadly sins, seven English-language curse words, often referred to as being the most obscene. The words, in the order George Carlin originally listed them, are: shit, piss, fuck, cunt, cocksucker, motherfucker, and tits. Full definition →