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1.
the act of masturbating on the toilet....
"it's a race for the bathroom every morning, i know my room mate is in the poopsturbating"
by orenbombs May 01, 2012
 
2.
The action of pooping and masturbating at the same time
Last night I heard Mr. Winkles poopsturbating in the bathroom

Andy loves poopsturbating

Majority of guys have been poopsturbating
by RandomPPL50534 January 29, 2014