Definition of screw up phrasal verb from the Oxford Advanced Learner's Dictionary

 

screw up

 phrasal verb
phrasal verb
 
jump to other results
Phrasal Verbs
(slang) to do something badly or spoil something synonym mess up You really screwed up there! related noun screw-up
(slang) to upset or confuse somebody 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
  1. 1to fasten something with screws to screw up a crate
  2. 2(British English) to fasten something by turning it I screwed up the jar and put it back on the shelf.
  3. 3(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 American Dictionary entry: screw up