foaming at the ass

To be fucked up the ass for so long, that the mucus in your ass starts to foam and leak out. See also anal fluid

Jane - "Oh baby, your cock is so tight in my ass, I think I could fucking explode"
Bill - "It looks so good too, baby. Your foaming at the ass!"

by Wobbly Joe January 5, 2008

Foam Ass

Foam ass is used to describe a female bum in a positive way. It was invented by Jonny Foam Ass.

Look at that foam ass Cameron!

by DankMEmes September 16, 2015

memory foam ass

when a guy/girl has an extraordinarily soft behind.

Eric: Broooo, Cbass has that memory foam ass!
Cbass: ?!?!

by Ivoznck November 5, 2020