To screw up is to make a mistake or error.verb
An example of screw up is when you add 2+2 and accidentally come up with 5.
The definition of a screw up is a mistake or something that has been done in error.noun
An example of a screw-up is a streaky, messy, blotchy paint job that has to be totally redone.YourDictionary definition and usage example. Copyright © 2013 by LoveToKnow Corp.
☆ or screwup
- a serious mistake; blunder; mess
- a person who screws up
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screw-up - Phrases/Idioms
Muster or summon up; see pluck up one's courage.
Make a mess of an undertaking; also, make a mistake, as in I really screwed up this report, or She said she was sorry, admitting that she had screwed up. Some authorities believe this usage is a euphemism for fuck up. [Slang; c. 1940]
Injure, damage, as in I screwed up my back lifting all those heavy books. [Slang]
Make neurotic or anxious, as in Her family really screwed her up, but her therapist has helped her a lot. [Slang; mid-1900s]