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

"You've got to respect the opposition. We know the threat they bring against us but we also know what we have to do in order for him not to be threatening against us."

From Barron's

“There’s less visibility,” and so less understanding, of the deals done in private credit and private equity, he said in an interview.

From MarketWatch

You see everything that you see at home and from what the Fed does in the United States and for the American citizens.

From The Wall Street Journal

"That feeling of being doomed… Out of everything I've done in the army and in life overall, that was the worst. Not having any idea what the future could bring or what would come next."

From BBC

"He saw the leader in me that maybe I didn't even see at that time. So I owe a lot to him for the job he did in my career."

From Barron's