look up any word, like donkey punch:
 
1.
A person who pooperbates. The noun form of someone who masterbates while taking a dump. Jerking and dumping simultaneously.
Ramsey you mastershitter, are you pooperbating again?

I have mastered shitting and beating off at the same time.. I am now a mastershitter.
by HeWhoRoams November 06, 2008