The unfortunate sequence of events starting with a sneeze causing a fart and resulting in shitting your pants a little. Or maybe a lot. It is in essence a shart occurring during a sneeze.
Alicia's sharteeze sprayed people in front of her AND behind her.
A big crap or load of diarrhea. Mainly occurs soon after eating a big meal and may contain strange combinations of identifiable chunks of food as is with a casserole. Props to Lumpy.
Man, after eating that #1 from Burrito King, I gotta go make an asserole.