the prominent lips or labia minora of a woman's vulva especially the kind which protrude beyond the outer lips such as to form a set of fleshy window curtains around her vagina. Also called batwings after the style of old fashioned Western Saloon doors seen in cowboy movies.
by ansoanon August 16, 2005

female sex organ; labias.
by Anonymous October 01, 2003

by The Drizzle January 25, 2005

"Eww i can totally see your beefcurtain when you wear that skirt"
"Your Beefcurtain looks a bit moist today!"
"Your Beefcurtain looks a bit moist today!"
by Jiovani August 21, 2006

by mungus man of beef June 30, 2008
