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!
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when a guy/girl has an extraordinarily soft behind.
Eric: Broooo, Cbass has that memory foam ass!
Cbass: ?!?!
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Alex quickly pulled his dick out of his girlfriends ass producing wicked ass foam. She ass foamed everywhere, ruined the sheets.
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The result of explosive diarrhea that looks like a root beer float once it lays to rest in the toilet.
That Mexican food we ate last night gave me such bad ass foam.
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the lather that forms on a horses ass when you ride it hard in hot weather.
The barista at Starbucks used ass foam for froth on all of her non-tipping customer's coffees.
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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!"
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When somebody spreads his ass cheeks and you spray lysol in his asshole and it turns into a foamy substance called ass foam.
Dan put his ass foam on Joey and joey said meheeeeeeee!!
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