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1.
The act of returning fecal matter to the orifice from which it came.
I asked this street wino why he was shoving turds up his asshole, and he told me, "I'm unpooing."
by Stan B. January 30, 2003

Words related to unpoo

ass butt butt crack constipatione diariah poo poop shit
 
2.
v.) to take back you poop; (n.) the process of sucking your poop back into your ass.
My stomach was empty so I had to unpoo.
by John Williamson March 27, 2007