When you poop and your ass burns just as much as your mouth did after eating something spicy; such as from buffalo wings. It can also be associated with having to poop quickly right after eating the spicy food.
I got buffalo ass after eating those hot wings last night.
by Goatiiee March 28, 2016
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Buffalo Ass: When a girl has such a big ass, its looks like a buffalo from the back.
Damn bro, that chick has a major buffalo ass !
by get some 0331 March 29, 2017
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DOUCHE 1: Hey bro did you see that guy Patrick Peck last night?
DOUCHE 2: Yeah, he’s a real buffalo ass bitch
by Chief strongbow January 22, 2019
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