SNOWARRHEA 

(n.) The result when mother nature drops a crapload of snow in a short time just under the freezing point so everything is semi-slush within the first few hours. (snow+diarrhea=snowarrhea)

No sir, this was no snowpocalypse or snowmageddon, it was worse...there's so much wet snow its like a snowarrhea!

SNOWARRHEA by Jaq Lemur February 9, 2010

showerrhea 

A case of diarrhea so severe that you have to jump into the shower right afterwards to wash the splatters off your ass.

"I am lactose intolerant and I get the worst cases of showerrhea every time I drink some."

showerrhea by Allen C. January 4, 2009

sniarrhea 

sniarrhea when you sneeze and diarrhea on yourself (usally happens in a public place)

Damn I sniarrheaed when I was at the theater and it was VERY quiet but I just sat there because I didn't want to miss the movie so by the time I got up is was everywhere and almost dry

sniarrhea by Nilfnog May 2, 2009