Fuck is an English word that is generally considered profane which,
in its most literal meaning, refers
 to the act of sexual intercourse. However, by extension it may be
 used to negatively characterize
 anything that can be dismissed, disdained, defiled, or destroyed.

"Fuck" can be used as a verb, adverb, adjective, command, interjection,
 noun, and can logically be
 used as virtually any word in a sentence (e.g., "Fuck the
 fucking fuckers"). Moreover, it is one
 of the few words in the English language that can be applied as
 an infix (e.g., "Absofuckinglutely!";
 "Bullfuckingshit!"). It has various metaphorical meanings.
The verb "to be fucked" can mean "to
be cheated" (e.g., "I got fucked by a scam artist"), or alternatively,
to be sexually penetrated.
 As a noun "a fuck" or "a fucker" may describe a contemptible person.
 "A fuck" may mean an act of copulation. The word can be
used as an interjection,
 and its participle is sometimes used as a strong emphatic.
 The verb to fuck may be used
 transitively or intransitively, and it appears in compounds,
 including fuck off, fuck up,
 "fuck you", and fuck with. In less explicit usages (but still
regarded as vulgar), fuck or fuck with
can mean to mess around, or to deal with unfairly or harshly. In a
phrase such as "don't give a fuck",
 the word is the equivalent of "damn", in the sense of something
 having little value. In "what the fuck!",
 it serves merely as an intensive. If something is very abnormal or
 annoying "this is fucked up!" may be said.