1 definition by sirbrutus

Top Definition
The act of removing a toilet tank lid, standing on the seat, and taking a dump in the tank of a toilet. Best done in public restrooms, always a crowd pleaser at the office too.

Also known as the Upper Tanker, 2000 Flushes Brown, Upper Decker, Going Up Top, and The Gift That Keeps On Giving. For a nice twist on this see Upper Deck Deluxe.

"Man, they fucking fired me so I tanked that fucking toilet on my way out!"
by sirbrutus July 12, 2006

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