Oxford Advanced American Dictionary

Definition of fuck verb from the Oxford Advanced Learner's Dictionary

fuck

verb
fuck pronunciation English fʌk fuck pronunciation American fʌk
 
(taboo, slang)1 [intransitive, transitive] fuck (somebody) to have sex with somebody2 [intransitive, transitive] a swear word that many people find offensive that is used to express anger, disgust or surpriseOh, fuck! I've lost my keys.fuck somebody/something Fuck it! We've missed the train.Fuck you—I'm leaving.
Idioms

fuck me

used to express surprise
Fuck me! Have you seen how much this costs?
Phrasal verbs

fuck around

(British English also fuck about) to waste time by behaving in a silly wayStop fucking around and come and help.
Help
 A more polite, informal way of saying this is mess about (British English) or mess around (North American English, British English).

fuck somebody around

(British English also fuck somebody about) to treat somebody in a way that is deliberately not helpful to them or wastes their timeThis damn company keeps fucking me around.
Help
 A more polite, informal way of saying this is mess somebody about/around (British English).

fuck off

(usually used in orders) to go awayWhy don't you just fuck off?

fuck up

to do something badly or make a bad mistakeYou've really fucked up this time!
Help
 A more polite way to express this is mess up.

fuck somebody up

to upset or confuse somebody so much that they are not able to deal with problems in their lifeMy parents' divorce really fucked me up.
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 A more polite way to express this is mess somebody up.

fuck something up

to do something badly or spoil somethingI completely fucked up my exams.
Help
 A more polite, informal way of saying this is mess something up.

fuck with somebody

to treat somebody badly in a way that makes them annoyedDon't fuck with him.
Help
 A more polite way to express this is mess with somebody.