Definition of screw up phrasal verb from the Oxford Advanced American Dictionary

 

screw up

 phrasal verb
phrasal verb
 
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Phrasal Verbs

screw up

(slang)
 
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to do something badly or spoil something synonym mess up You really screwed up there! related noun screw-up

screw somebodyup

(slang)
 
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to upset or confuse someone so much that they are not able to deal with problems in their life Her father's death really screwed her up. see also screwed-up

    screw somethingup

     
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  1. 1to fasten something with screws to screw up a crate
  2. 2(slang) to do something badly or spoil something Don't screw it up this time. It was his life and if he screwed it up—too bad! related noun screw-up
See the Oxford Advanced Learner's Dictionary entry: screw up