A famous spot that appears on someones face. It is extremely visible and infected. Commonly known for exploding over someone.
Naj's Mount Vesuvius is about to explode over someone!
The occurrence of explosive diarrhea immediately after anal sex, while the participant is lying on their stomach, and the fecal matter projects upward in a volcano-like fashion.
My 1200 thread count sheets were ruined after that ho Mount Vesuvius'd all over the bed.
When a girl takes a drag of a cigarette then gives a guy a blow job.
That chick just gave Greg a MASSIVE mount vesuvius!