Top Definition
To have anal intercourse with a partner for so long that when pulled out, the anus is the size of a qaurter. This can be seen in many pornos.
Oh shit! Did you see her friggen quarter butt!

Dude i did her anally for like 10 minutes, when i pulled out she had major quarter butt.
by d.bennett May 17, 2006
5 Words related to quarter butt

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