Meaning of do in in English | Powered by Free Dictionary API

verb

• To kill or end.

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

• To exhaust, to tire out.

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

• To damage or injure.

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