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The level of drunkenness that you're only dumb enough to achieve every four years or so. Utterly shattered. A leap year drunk usually results in an epic story of debauchery that can only be told by the friends of the victim, or, often, total strangers you you gave your phone number to.

Alissa: On Friday I went out with Melissa and got REALLY drunk ... I mean like leap year drunk. She can tell you about it better than I can, though.
by spamania December 03, 2007
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