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1.
When one has to pee really bad.

The expression: "my teeth are floating" is used. To describe that one is so full of urine it has filled up their body to the back of their throught making there teeth float in the urine.
Guy 1: My teeth are floating, but the line for the bathroom is too long.
Guy 2: Dude, just piss yourself and get it over with.
Guy 1: Nah, I'd rather pee on the Merry-Go-Round.
by benormous November 30, 2005