Top Definition
toosh(adj.): an uncool person, flake, fake, or poser; biggest loser on the planet.

toosh(verb): to act uncool or screw something up by be being stupid/uncool; to push one's luck and fail miserably w/great shame; to flake out.
Fabio is a toosh.

GW Bush really tooshed it w/ the war on Iraq.
by pussy destructo March 03, 2004

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