do in

British  

verb

1. to murder or kill

2. to exhaust

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do in Idioms  

1. Tire out, exhaust, as in Running errands all day did me in . [ Colloquial ; early 1900s] Also see done in .

2. Kill, as in Mystery writers are always thinking of new ways to do their characters in . [ Slang ; early 1900s] Also see def. 4.

3. Ruin utterly; also cheat or swindle. For example, The five-alarm fire did in the whole block , or His so-called friend really did him in . [First half of 1900s]

4. do oneself in . Commit suicide, as in She was always threatening to do herself in . [ Slang ; first half of 1900s]

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Example Sentences

Ahead of the strikes, social media users -- particularly on Instagram -- on Friday shared safety advice on what to do in the event of explosions or air strikes.

From Barron's

Even then, the public is responding without the full facts or a full context, as they do in most polls.

From Salon

Plaid Cymru will unveil a plan on Saturday for what it would do in the first 100 days should it win the next Senedd election.

From BBC

And don't forget by-elections are strange beasts, where smaller parties can concentrate time and resources in ways they simply can't do in a bigger contest.

From BBC

It will be done in a way that is itself a nod to the past, in the guise of one of its two playable protagonists - a now older version of fan favourite Leon S. Kennedy.

From BBC