🇬🇧 en nl 🇳🇱

act up verb

  /ækt ˈap/ , /ækt ˈʌp/ , [ækˈtäp] , [ækˈtɐʔp] , [ækˈtʌp̚]
  • (intransitive, idiomatic) To misbehave; to cause trouble.
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