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1.
A person who commits heinous acts of the fecal nature.
Including: Upper-deckers, unflushable logs, poop nuggets in the shower, ect...
After waking up and seeing the large shit on the floor, Mark ran through the house searching for the poopetrator.
by super skeet May 03, 2010
 
2.
When your cat takes a fresh deuce after you've just cleaned the litter box.
Damnit!!! I just cleaned the litterbox and this Poopetrator shat once again!!!!!
by Nathanharlow@aol.com September 11, 2010
 
3.
One who leaves behind large bowel movements in public toilets for others to find.
"Man, that is one giant turd ... I wonder who the Poopetrator was this time?"
by raspooptan February 21, 2014