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A type of hair style where a girl quickly puts her hair in a bun on the top of her head in an disorderly fashion. The majority of girls you see in public with this hair style are in fact huge bitches. A bigger bun results in a bigger bitch.
Guy1 "Wow, why was Teagan being such a bitch last night??"
Guy2 "Didn't you notice her bitch bun? I saw that and could tell she was going to be trouble"
by kanixluvsteagz January 11, 2011
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