Huge breasts, especially ones that break free of a woman's bra.
Salma Hayek is known just as much for her big breasts as she is for her acting. Those bra busters really put on a show of their own!
by HyperKnight May 29, 2008
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A girl or woman with big tits. A chick who is stacked. Someone who has big jugs.
"Look at her! Those must be D cups, at least."

"Yeah - she's a real bra buster!"
by PMax March 11, 2008
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