by toby May 13, 2005

by Toby September 08, 2004

by Toby November 10, 2004

by Toby May 28, 2003

by Toby May 16, 2004

adj. used in refferance to a chick's ass, communicating that the ass is both round and firm and though it may appear to be large, in porportion to the rest of her body it looks damn fine.
"That chick has a tank ass!"
"Which one?"
"That one there with two strange bulldogs pawing at one another in the back of her jeans."
"Oh!... That's a tank ass..."
"Which one?"
"That one there with two strange bulldogs pawing at one another in the back of her jeans."
"Oh!... That's a tank ass..."
by toby January 03, 2004
