Urban Dictionary: tighten

1) To maim, injure or kill someone
2) To get ones act together

1) Time to tighten that nigga's ass up
2) I have to tighten my expenses to buy that video game

by Vyxen November 23, 2004

The response when anticipating physical discipline. The body becomes rigid and tense as contact is inevitable.

I was afraid not to behave in church since my dad would take off his belt and tighten me up when we got home

An extra bong hit. When one or two is just not enough.

I don't feel that high yet, let me do a tightener.

by Ty Innmejunk May 31, 2009

Prison slang for "pay attention". Can also be used to tell another inmate to stop goofing off.

"Yo man tighten up! Don't you see what's about to happen?"

by graybar hotel February 09, 2014

Mary: Sarah you should put your clothes on!
Kelly: Yea, Sarah tighten up!
Sarah: Mary you should stop takin it deep!
Kelly: Yea, Mary tighten up!

by Joe11 June 28, 2006

After breaking his sobriety and drinking, Amy told John to tighten it up.

by SLAP May 11, 2004

to start to control something or someone more carefully

I have tighten the reins on my little sister so that she won't eat anymore candy.