do in

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do in (third-person singular simple present does in, present participle doing in, simple past did in, past participle done in)

1. (transitive, colloquial) To kill or end; to defeat.

   Synonyms: bump off, do away with, (obsolete) feague; see also Thesaurus:kill

   By the eighth mile, I was sure that finishing the 10-mile hike would do me in.

   We very nearly did in an entire keg of beer that weekend.

   • 1959, Tom Lehrer (lyrics and music), “Poisoning Pigeons In The Park”, in An Evening Wasted With Tom Lehrer:

     So if Sunday you're free why don't you come with me and we'll poison the pigeons in the park
     And maybe we'll do in a squirrel or two while we're poisoning pigeons in the park

   • 2017 October 27, Alex McLevy, “Making a Killing: The Brief Life and Bloody Death of the Post-Scream Slasher Revival”, in The A.V. Club‎, archived from the original on 5 March 2018:

     Slasher fans rejoiced—for a couple years anyway, until the boom swiftly faded, done in by the same causes that fell so many other eruptions of a style or genre, of any medium: The host of imitators are never as good as what inspired the affection in the first place.

2. (transitive, colloquial) To exhaust, to tire out.

   I’m off to bed. I’m completely done in.

   I'm exhausted! That 20-mile hike has done me in.

3. (transitive, colloquial) To damage or injure.

   I’m off work at the moment; I’ve done my back in.

4. (transitive, slang, dated) To rob (someone); to steal or pilfer from (someone).
5. (transitive, colloquial) To eat.

   I can do in a dozen eggs.

• dino, noid, indo, Indo, DINO, Dion, Odin, Dino, Noid, doni, dino-, Indo-, nido-, nodi, NOID