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

foul up

phrasal verb
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foul up
  1. (informal) to make a lot of mistakes; to do something badly
    • I've fouled up badly again, haven't I?
    related noun foul-up
foul something up
  1. (informal) to cause something to fail, especially by doing something wrong
    • Everything was going really well until Rob came along and fouled things up.
    related noun foul-up
See foul up in the Oxford Advanced American Dictionary

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Nearby words

ripple effect
noun
 
 
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Change, cause and effect
C2
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