A brown discoloration on the vaginal lips, often seen on porn stars.
When I went down on Tina, she had some wicked Roast Beef Syndrome that reminded me of an Arby's Big Montana
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When a girls pussy lips resemble that of roast beef. They r brown and loose.
Damn bitch u some fine R.B.S. (Roast Beef Syndrome)
Ewww I can smell that R.B.S. outside of your pants
Put that R.B.S right here.
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