when you jizz in a girls ass and she proceeds to shart out semen
i just gave sarah the biggest Vanilla Mudslide
A messy facial that is delivered upon an "individual" by six or more men. This started out as a woman but changed to individual to be politically correct, since there are a lot of really sick homos out there.
Sally was really pissed that what started out as a nice drinking party with some of the fellows from down at the dock digressed into a vanilla mudslide.
"Oh stop crying, Betty...It was only a vanilla mudslide. The chocolate ones REALLY suck."