Top Definition
Rules of the game as outlined by a man named Birdy "Roadblock" Ault

-The religion, practice, or belief a "player" follows.
-The science of controlling a "Bird"
Damn this guy gets mad chicks! He's like the High Priest of BIRDYISM
I don't care about these women, I follow BIRDYISM
If you wanna know how to treat these hoes....refer to the BIRDYISM Bible
by HollywoodeXceL June 28, 2013
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