do in - definition and synonyms

phrasal verb [transitive]
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.

See also main entry: do