- (transitive) To make a mess of; to untidy, disorder, soil, or muss.
- The afternoon breeze messed up my hair.
- (transitive) To cause a problem with; to introduce an error or mistake in; to make muddled or confused; spoil; ruin.
- The change messed something up, and it's not working anymore.
- (transitive) To botch, bungle; to perform poorly on.
- Well, I messed up my solo, but otherwise it was a good concert.
- (intransitive) To make a mistake; to do something incorrectly; to perform poorly.
- He has a hard time getting started because he's afraid he'll mess up.
- She messed up on her final exam.
- (transitive) To cause (another person) to make unwanted mistakes in a given task, usually through distraction or obnoxious behavior.
- Stop bumping me! You keep messing me up!
- (transitive) To damage; injure.
- He messed up his elbow at the track meet.
- (transitive, slang) To manhandle; beat up; rough up.
- Her brother's friends messed him up a little after he cheated on her.
- (transitive, slang) To discombobulate, utterly confuse, or confound psychologically; to throw into a state of mental disarray.
- That girl totally messed me up, man. I'm not sure who I am anymore.
- (make a physical mess of) fuck up (vulgar), gum (verb: "gum up")
- (cause an error or problem in) fuck up, jack up, louse up, screw up
- (botch, bungle) gum (verb: "gum up"), foul up, fuck up, screw up
- (intransitive: make a mistake, perform poorly) fuck up, screw up; see also Thesaurus:make a mistake
- (cause (another) to make mistakes) screw up
- (damage, injure) fuck up, jack up, screw up
- (manhandle, rough up) fuck up
- (discombobulate, throw into mental disarray) fuck up
- French: gâcher
- Portuguese: desarrumar, bagunçar
- Spanish: desordenar, desarreglar, desbarajustar, echar a perder
- French: foirer (pejorative)
- German: vermasseln
- Russian: провалиться
- Russian: повредить
- Russian: сбить с толку
- Spanish: descolocar