Forceful explosion of watery feces. As violent and noisy as a sneeze. Often a sign of extreme gastro-intestinal distress. Common to tourists in third world bathrooms.
"I had terrible Sneezarrhea after I ate this roadside samosa-type thing in Zambia. It was like, ' Ahhh - Ahhhh - Splat!!!'"
by AaronD October 27, 2005