known as the left over crap that doesn't get wiped off when one is finished cleaning their ass after taking a chocolate nugget.
Usually guys have this problem the most since its harder to clean a harry ass.
me:hey man? whats the best way to get rid of ass dirt
A type of girl denim jeans or pants that are especially favorable for showing the perfect curves of a girl's buttocks, usually pocketless. They can only be worn by some.
"Dude, did you see that chick's ass?"
"Yeah, girls should wear ass jeans more often."