1 definition by darklord1147

The unspoken law saying you can not call a girl you just met for three days
guy 1:Are you going to call that hoe from last night back?
guy 2: I'll probably do it tonight.
guy 1: Dude, 3 day rule
guy 2: you're right what was I thinking
by darklord1147 May 24, 2007
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