Diarrhea casued by ingesting a large amount of slurpee, usually a X-Treme Gulp. The slurpee goes right through body becasue there is little to actually digest, it is a extremely runny fluid that comes out easily, sometimes is coloured the same as the slurpee.
Ben: "Wow, that was a good slurpee!"
Mitch: "Yeah I'm done too."
Mitch: "AHHH, Slurhea!!!"
**Runs to washroom**
Ben: "What the fuck, that was fast!"