The act of fornication as carried out on a sled speeding down a hill. Sledding on a steep incline is not recommended, and the participants risk the threat of serious injury. Just another way to heat up your sex life in those chilly winter months. Common in Norway.
The vagina of a slut, a girl/guy who's had incredible amounts of action, and therefore is a giant slut for doing so. Used to describe the type of vagina of a big ol' whore, meaning that it's been penetrated many times, or looks like it could have been.
Created by Pervert-Smack-Kaydawg of NY, NY.
"Dude, that girl's so fuckin' hot."
"Oh, her? Yeah man, but shes a huge slutgina."
"YES!"