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To screw up something. To fail miserably.
Dude, you just totally "Zanched" that exam.

by LR23 August 03, 2006
5 7
A disfiguring disease that results in enlargement of the nose. Often called "Jew-nose".
Man, that guy's got a bad case of the Zanch.
by Grab-ass August 03, 2006
2 11