this occurs when one receives a rim job from a female specimen known as a butter face.
"She's too ugly to fuck, just let her butter your buns...twice."
by New Room September 21, 2007
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When you cum on someone’s ass and it covered their ass.
“MAN I REALLY BUTTERED HER BUNS.”

“HER BUNS WERE BUTTERED.”
“You can say I had Buttered Buns.”
by Justasin September 18, 2022
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