Top definition
When, to your surprise, you go to pee in a wall urinal and you find a load of shit just sitting there clogging the path of the piss. It is the nemesis of every janitor.
Nick: Dude I was just in the bathroom and someone couldnt wait to hit the stalls and took a Humptie Dumptie.

Tim: Dude I know, I did it...
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