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One who takes a long time on the toilet pooping.
"As a longpooper I hate public toilets with an automatic light switch. The inventor really should have thought that shit through." -Miller-STGT
by brickhardcheese May 21, 2012
Someone takes a long time to poop in the bathroom. ( Via Reddit)
Kevin: Why did you take so long in the toilet?
Nick: I'm a longpooper.
by Hbw May 21, 2012