Fuck is a profane English-language word  which often refers to the act of sexual intercourse but is also commonly used as an intensifier or to denote disdain. While its origin is obscure, it is usually considered to be first attested to around In modern usage, the term "fuck" and its derivatives such as "fucker" and "fucking" can be used as a noun , a verb , an adjective , an interjection or an adverb. There are many common phrases that employ the word as well as compounds that incorporate it, such as " motherfucker ," " fuckwit ", " fuckup " and " fucknut ". It is unclear whether the word has always been considered vulgar or, if not, when it first came to be used to describe often in an extremely angry, hostile or belligerent manner unpleasant circumstances or people in an intentionally offensive way, such as in the term motherfucker , one of its more common usages in some parts of the English-speaking world. Some English-speaking countries censor it on television and radio.