up-tight

Someone who has a very serious demeanor.

Billy's father needs to relax and enjoy life because he seems too up-tight.

by Jerry Mouse July 3, 2008

up tight

Behaving in a cold or unforgiving way due to angst, a hangup or some bogus morality or propriety.

1. He got up tight about me smoochin' with his woman and sulked about it until the wine smoothed things out and we decided the bitch wasn't worth the trouble.

2. The pigs were really up tight about their missing squad car, but Jimmy was no snitch.

by Jubilation T. Corndoq March 26, 2007

fuck tight up

to tighten the fuck up. usually followed by a swift blow to the head.

"Fuck tight up, b!"

by Horatio Sangre June 28, 2004