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Definition do in in British English

do in phrasal verb

[transitive] phrasal verb
1

to murder someone

Example

I reckon someone did her in to get her money.

Synonyms and related words
2

to make someone feel very tired

Example

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

Example

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

Synonyms and related words
Definition do in in British English