1. adj. Describes the many folds and layers of labia of an inside-out pussy.
2. Noun. Vagina that closely resembles the Arby's big roast beef sandwich.
A really loose girls vagina. When he cunt folds over itself and it's all brown n crusty.
I saw this girl the other day and she was sooo hot!! She actually let me go down on her but when i found out she had roast beef i threw her out the window