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A woman who is well endowed in the buttocks area. Not too much where there would be a need for bra-like support. A term frequently used in the punch up of classified ads. Similar to a booty or a badonkadonk
Chastity, was most well known for her busty bum" or "Do you sell pants that help accentuate a busty bum?
by slanted7 April 04, 2011
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