Criarrhea is the phenomenon in which you throw a packet of hot cocoa mix at someone's face and eyes, making their eyes sting and they begin to cry. The tears mix with the cocoa mix and, together, runs down their face; the result looks like diarrhea.
Online rhetorical spew, particularly in a chatroom, usually by someone suffering Online Personality or Online multiple personality disorder- Like diarrhea of the mouth, only in text form.
In a chatroom, Amber is talking about everything from politics to killing vietnamese people with a chair, to baking cakes for Jesus on Christmas. Is she okay, or suffering from Chatarrhea?
The phenomenon in which a group of alpha males, when in close proximity, synchronize their fecal cycles as to all shit at the same time.
See also - Menstrual synchrony
Chris - "Did you hear that Chad, Brad, and Thad got a nasty case of Chadarrhea?"
Dom - "Nah, but that's what happens when a bunch of high-protein chads start living together."