1 definition by quetzalphoenix

The tacit requirement in ultra-clean American society that dropped food must not lay upon the ground for longer than five seconds in order to be still edible. Certain requirements about food type (i.e., non-sticky or attracting of dirt particles) generally apply.
Dude! I dropped my Dorito! Five second rule...still good.
by quetzalphoenix July 10, 2004
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