Pre-Vag 

Refers to the excess skin in larger females that ends up folded in front of the proper vagina. Popularized by OB/GYN residents. Usually results in a smell similar to nasty armpit, swamp ass and indian food. Mechanical obstruction to sexual intercourse. May need assistance by providing traction to penetrate properly. Feature common in mud sharks.

I lost my glove in the pre-vag!

Pre-Vag by Mike Honcho007 May 17, 2009

Pre-vagnician 

One who possess the ability to predict the appearance of a woman's vagina by assessing her personality almost immediately upon meeting her.

"Within five minutes Jacob could tell us exactly what her pussy looked like. I think he must have pre-vagnician."

Pre-vagnician by UnicornButtSex January 28, 2016