ass crinkle

the ass crack of a fat person who's crack has extended into their lower back.

I once saw a guy so fat, his ass crinkle was almost to his neck

ass crinkle by TheBlock June 28, 2008

crinkle ass 

older person whose butt skin as become crinkled

Suzie: "I can't go out with you, Howard. You're too old for me. You old crinkle ass."

crinkle ass by Squeazl August 4, 2009

asswrinkle 

A really stupid (or otherwise useless) person (visualize the cottage cheese-like deformities on an overweight (or otherwise flabby) person's posterior).

No, you can't fit that construction cone in your left nostril. Now stop being an asswrinkle and help me {insert action here}.

asswrinkle by ash1337 September 8, 2006