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.

Cui by Jason Backster April 26, 2004

cui 

Verb: To Masturbate. Can also be used as a noun (e.g. "I love the cui").

Person 1: "Man that was a good cui".
Person 2: "Nothin like cuiing in the early morn".

cui by Adam Gablowsky April 29, 2004

CUI 

CUI (pronounced as "queue-ee"). Stands for Completely Useless Information.

"I just spent 15 minutes listening to that CUI from my boss"

CUI by Testguy August 19, 2007

cui 

To masterbate alot, even though alot of people wont say they cui they really do. This guy named Joey i know does it.

Ricky: What are you gonna do man?
Joey: I might go home and cui some more

cui by Dirty white boy March 11, 2005

cui 

“Can you imagine”

Not to be confused with cufi: “Can you fucking imagine?”

Each letter must be said separately. Obvs.

Hi pal. Cui how fun it will be when those ratchet strippers queef in our face tonight? I mean cufi?

I sure can pally.

cui by Avizzle February 15, 2020

cui 

A different term for the abbreviation lol. Cui is the abbreviation for 'Crack Up Inside'

Instant Messanger 1: you smell lyke dog shyt
Instant Messanger 2: lol

::now with cui::

Instant Messanger 1: you smell lyke dog shyt
Instant Messanger 2: cui

cui by Joey September 4, 2004

cui 

n., pl.; the plural form of "cuz"; two or more good friends, buddies, homeys, homeslices, etc.

I'm chillin' with my cui.

cui by KFan II May 20, 2010