Top Definition
A defecation so large and monumental that the seemingly numeric (di)arrhea becomes obsolete and must then raise the prefix a level further.
"Dude, those burgers last night...I had diarrhea all this morning!"

"You're lucky, man, i was in the bathroom all day; i had fuckin...triarrhea!"
by yesnomaybe January 09, 2008
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