(intransitive, slang, vulgar) To make a mistake, to go wrong. / (transitive, vulgar) To botch or make a mess of. / (transitive, vulgar) To injure or damage badly.

Alternative spelling of fuckup

(vulgar, uncommon, Canada) To avoid work; to make it appear as if one is working. / (vulgar, uncommon) To make a horrible or catastrophic mistake; to screw the pooch.

(vulgar, slang) A sex partner with whom one has sex, usually repeatedly, but without any romantic attachment (no strings attached).

(transitive, vulgar) to cheat or treat unfairly (to exploit somebody in a way which results in an advantage to oneself, at the cost of the other party gaining a considerable disadvantage)

simple past tense and past participle of fuck up

(idiomatic, vulgar) Damaged; poorly manufactured; injured. / (idiomatic, vulgar) Morally reprehensible; clearly and grossly objectionable.

In a screwed up or messed up manner; (by extension) under the influence of alcohol or drugs. / (slang) All wrong; mistaken; taken the wrong way

(idiomatic, vulgar, chiefly in the negative) To care; to give a shit.

present participle of fuck up