When one shits in their pants and then shakes the poop out of the bottom of their pant leg.
I was on stage and I had to shake one out and it wound up hitting someone in the front row.
by Rob Stern September 25, 2007
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When you have to jiggle your penis to get out that last drop of pee out.
Bryan: What took you so long to take a piss?
Chris: I had to shake one out.
Bryan: Oh, I hate that.
by PenPecker August 8, 2011
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