Roast Beef Syndrome

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

by Scott Riel February 14, 2004

R.B.S. (Roast Beef Syndrome)

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.

by GuCcI May 27, 2013