définition
Fuck is an English word that, as a verb, literally means "to have sexual intercourse with," and figuratively means "to take unfair advantage of." It was at one time the most vulgar word in the English language, and its use would be considered déclassé in polite social circles. But the word has permeated the vocabulary of many social groups (such as lawyers, entertainers, and politicans) who would once have shunned it. Now it is often used simply to provide emphasis, as "very" or "really."