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1.
Referring to a girl that is slutty, skanky, and messes with many guys at once.
"Look at that bird bitch, she was trying to get with my man on tha low."
by freshhaze July 13, 2006
 
2.
Female that is overly permiscuous, two-faced and/or extremely impressionable. Somewhat of a golddigger.
This girl stay on the hood with her birdbitch shit.
by Big Me January 10, 2008