vesuviass 

Having severe diarrhea with a large amount of gas that expels the near-liquid foamy fecal matter, much like the volcano that destroyed Pompeii.

"Dude, you've been in there a long time..."

"I'm going to be a while"

"It sounds like you broke the toilet"

"Yeah, carrots give me vesuviass"

vesuviass by IAMCORNHOLIO October 19, 2012

Mt. Vesuvi-Ass 

The seemingly never ending flow of hot, runny,painful excrement that lays waste to the porcelain of your toilet, much like Mt. Vesuvius laid waste to the unsuspecting city of Pompeii. This phenomenon is usually brought on by the ingestion of ethnic food.

Oh man! That Thai food we ate gave me some awful Mt. Vesuvi-Ass.

Mt. Vesuvi-Ass by TreeMI January 21, 2009

Mount Vesuvius 

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.

Mount Vesuvius by Fecalstein June 1, 2010

Reverse Mount Vesuvius 

When a girl is giving you a blowjob and when you cum she vomits all over your dick but then not only swallows all the cum but the vomit too.

I was getting head from my girl last night and when I busted a nut it made her puke but then she went reverse mount Vesuvius on me.

Reverse Mount Vesuvius by DrRobot August 9, 2015

vesuvius 

A shit, having the consistency of toothpaste, that contains enough mass so as it stacks upon itself it will create a pile of shit in the toilet bowl that breaches the water level in the bowl. The pile of crap in the toilet will resemble a volcano. (Vesuvius is a famous volcano in Italy.)

I don't know what I ate for lunch, but by two o'clock I had dropped a vesuvius in stall # 2

vesuvius by Lou_III September 27, 2006

Vesuvius 

An adjective describing a person or thing that is explosive or has explosive tendencies. Useful in, but not limited to, describing sports stars, their skills, and their tempers.

When Reggie Bush gets the ball in his hands, he becomes absolutely vesuvius!

Oh my God! Marcus Thames hits another vesuvius home run!

John Rocker had one of the most vesuvius tempers in the last 10 years of Major League Baseball.

Vesuvius by AdamJamez June 11, 2008

Mount Vesuvius 

The act and/or result of a man taking such a large shit that it ice-creams beyond the water level while simultaneously pushing against the ejaculatory gland in the rectum hard enough to make the man ejaculate(cum like a stallion) on the peak of the newly formed shit mountain, creating a brown and white massive volcano shit

"Babe you aren't gonna believe I the dump just unloaded! I think I'll call it Mount Vesuvius."

Mount Vesuvius by someone stole my name February 13, 2014