1 definition by Jason Backster

Cui

To Masturbate. Originated from a person named Harry Cui, who was believed to have masturbated at least 10 times a day. Suspected of even ditching friends and parties to do it.

Person 1: Oh man I'm sorry dude I have a ton of homework, I can't get out.
Person 2: Bullsh*t, you just want to cui.

by Jason Backster April 27, 2004