do in

do in  {v.},  {slang}

1. To ruin; destroy.

Mr. Smith's business was done in by a fire that burned down his store.

2a. To kill; murder.

The poor man was done in by two gangsters who ran away after the crime.

2b. To make tired; exhaust.

The boys were done in after their long hike.

Syn.: WEAR OUT (2).

3. To cheat; swindle.