in [phrasal verb] [T] [slang] - to attack violently or killThey threatened to do me in if I didn't pay up by Friday.I heard she did herself in after the scandal was exposed.(figurative) That hockey match really did me in (= made me very tired).(figurative) I was/felt really done in (= very tired) after the match.
DO
Meaning of DO in English
Cambridge English vocab. Кембриджский английский словарь. 2012