Top Definition
the act of having extreme loyalty to one of your boys
Aaron: "I'm sorry Lisa, I can't bang you tonight"
Lisa: "How come?"
Aaron: "You used to be Jim's bang friend. He's my boy. I have too much boyalty so I can't sleep with you, even though you have enormous boobs and everyone else has banged you"
by Nautilusadvocate August 18, 2010
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