Top Definition
the act of taking a dump while facing the tank of the toilet. this enables the dumper to utilize the top of the tank as a work surface for a computer, writing letters, accounting amongst other tasks. It also provides a place to rest arms/elbows.

- originated at the University of Kansas circa 2008.
"I was able to check my emails on my laptop in the restroom while taking a reverse dump."

"Dude, why are you taking your sandwich into the can?"
- "It's cool. I'm taking a reverse dump so I can still enjoy my sandwich."
by gen. city August 25, 2010

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