roastbeef Share definition Flag When a girls pussy lips are discolored from the rest of the pubic area. Always a purple or brown color. Carley Vogel had the worst roast beef I have ever seen. Carley had more roast beef than a Deli. roastbeef by Steve-o! May 31, 2004 0 0 Get merch Get the roastbeef mug. Buy Now — $32.95 See more merch