Top definition
a woman with a really nice ass

ORIGIN- a group of young men in a mall in Northern New Jersey who had created the defenition for "poop-butt" added "nice" to the front to emphasize the veluptiousness of the poop-butt

MFW Outerwear
"Look at that nice poop-butt over there!"- Sarach
by Lil' Jig January 25, 2011
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