look up any word, like blumpkin:
 
8.
A combination of the two words "cheek" and "crack" forms the word chack. used to desribe the view when only half of someones ass is showing.
"this guy at work had a plumbers chack yesterday."

"nasty dude, you have shit on your chack."
by Colonel Cram December 17, 2006
 
9.
a mix between a chinese and a black.
I'm white your chack.
by nctarheelfannn March 02, 2005
 
10.
A person who tries to be something he's not. poser
Look at him, trying to be goth. What a chack!
by Stephanie H. November 27, 2004