Top Definition
The rule that states if you are hooking up with a girl and you pull your junk out, she will either touch it, suck it, fuck it, or push it away. There is a 75% chance she will do something.
Dan: Yo, I was hooking up with Trinity last night, and I totally 75% Ruled her
Jon: What'd she do?
Dan: I got a handjob
by JZBURGER May 06, 2014
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