(1) When having anal sex, you pull out and cum on her butt.

(2) A very stupid person's behavior
(1) "Things were feeling so good, I gave her a little ass frosting"

(2) "Get off of me with your ass frosting!"
by J.T. in KS September 25, 2008
Get the Ass Frosting mug.
Doing a line of coke off a hooker's ass.
Damn, man, for only $30 bucks I could get a little ass frosting from her.
by biocat89 December 13, 2010
Get the ass frosting mug.