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do in

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phrasal verb [transitive]
Word Forms
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present tense
I/you/we/theydo in
he/she/itdoes in
present participledoing in
past tensedid in
past participledone in
  1. 1
    informal to murder someone

    I reckon someone did her in to get her money.

  2. 2
    [usually passive] spoken to make someone feel very tired

    I'm completely done in after all that running around.

    It was climbing that last hill that really did them in.

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