When taking a shit, and you squeeze out one
hard, solid
turd, but everything behind it is explosive diarrhea. The solid
turd represents the cork of a champagne bottle, and the explosive diarrhea represents the champagne that explodes from the bottle like a star going supernova.
The trifecta is when this occurs while you are in an airplane lavatory, the "Champagne supernova in the sky"
ME: I thought I was going to have a
normal,
solid shit, but after that first
turd, my ass exploded with the hershey squirts.
Friend: Whoah! That is a champagne supernova!