fuck up
phrasal verbfuck up
- (taboo, slang) to do something badly or make a bad mistake
- You've really fucked up this time!
fuck somebody up
- (taboo, slang) to upset or confuse somebody so much that they are not able to deal with problems in their life
- My parents' divorce really fucked me up.
fuck something up
- (taboo, slang) to do something badly or cause something to fail
- I completely fucked up my exams.