Rost Beef 

When someone run's up on you and farts in your face.

Awwww, man Bobby was Rost Beef in the face by Jr.

Rost Beef by licksalotpuss March 20, 2009

Rost Beef Curtan

The outer labia of a well-endowed chick, otherwise known as a Meat Drape.

Check out her roast beef curtan

Rost Beef Curtan by Mikus February 6, 2003

rost beef and ketchup 

when you are eating a girl out on the thrag and you get a blood clot in your mouth and you eat it

i was eating here out and got some rost beef and ketchup

rost beef and ketchup by k24civicboost August 4, 2009

rostbeef curtains

another word for vagina lips

roast beef curtains are dank

rostbeef curtains by rasta ry February 28, 2005