Top Definition
One must be ten percent smarter than the object/task one is attempting to use/accomplish.

For instance, pushing a pull door or failing at some other seemingly simple task.
Friend 1: Did I hear correctly that your girlfriend got locked in her own car?

Friend 2: Yeah. 10% rule, dude.
by PeteWine February 09, 2009
6 Words related to 10% Rule

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