1.) in reference to an old woman's crotchial region.
2.) an elderly woman's cellulite asscheeks and old vagina lips.
damn -- Grandpa had some straight up bagels and roast beef last night!
by ohhcheese July 17, 2006
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A woman with a very loose vagina and a massive gray bush. Add much needed man juices to make a ruben.
Do that was one fucked up roast beef with sauerkraut I ate last night!!!
by quil bomber April 19, 2008
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The freakishly large inner labia of a woman's vagina after it has seen extensive abuse. It sometimes resembles two slices of medium-rare roast beef.
Farrah's dungeon master pierced her roast beef curtains with a rusty fish hook.
by Jay E. Griffin April 1, 2008
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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 15, 2004
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A term often used amongst cullinary circles, a roast beef vagina consists of taking the following ingredients:

1 Wide-Set Vagina
2 lb. of roast beef
1/2 cup of mashed potatoes
A pinch of camel toe
And one large helping of Mama's Homestyle Erotic Gravy

Insert the ingridents into your girlfriend/date/sister then mix well with your tongue.
"Pardon me, waiter, but do you happen to have Roast Beef Vagina on the menue?"
"No sir, the last man ate us out."
by Lord Foppington October 4, 2008
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