Diflucous of the blowhole 

Diarrhea; the runs, the hershey squirts (you get the picture. It ain't pretty.)

blowhole = asshole = yer sphincter

After eating at Joe's Ptomaine Shack, Steven had a bad case of diflucous of the blowhole.

Diflucous of the blowhole by Luigi July 12, 2004