Definition of mess someone up in English:

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mess someone up

1 informal Cause someone emotional or psychological problems: I was unhappy and really messed up
More example sentences
  • Anorexia and Bulimia are eating disorders that can really mess you up, even kill you!
  • As even the teen recognizes, it will just mess him up emotionally.
  • Anyways, we got in really early, which shows you just how badly the traffic messes you up.
1.1US Inflict violence or injury on someone: the wreck messed him up so much that he can’t walk
More example sentences
  • Don't even start with me, because I will mess you up.
  • ‘I'm gonna mess you up,’ he said to Rock as they squared off in the final sequence.
  • The fight with that new watchman really messed him up.
See parent entry: mess
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