do in

US /duː ɪn/

UK /duː ɪn/

1.

to kill someone

:

•

The gangster threatened to do in anyone who betrayed him.

•

He was afraid the enemy would do him in if they caught him.

:

kill murder slay assassinate eliminate

2.

to make someone very tired

:

•

That long hike really did me in.

•

Working two jobs is starting to do her in.

:

exhaust tire out wear out fatigue drain

:

do do for do away with do's and don'ts to-do list do over do up