do someone in Meaning in the Cambridge English Dictionary
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Meaning of “do someone in” in the English Dictionary

"do someone in" in American English

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do someone in

infml
phrasal verb with do  us   /du/ verb (present tense does  /dʌz, dəz/ , past tense did  /dɪd/ , past participle done  /dʌn/ )

do someone in (TIRE)

to ​tire someone: That five-mile ​hike did me in.

do someone in

infml
phrasal verb with do  us   /du/ verb (present tense does  /dʌz, dəz/ , past tense did  /dɪd/ , past participle done  /dʌn/ )

do someone in (CAUSE TO FAIL)

to be the ​cause of someone's ​failure: A ​couple of ​keylosses did the ​team in.
(Definition of do someone in from the Cambridge Academic Content Dictionary © Cambridge University Press)
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