Fusion Poop 

When two people stand back to back over a toilet, bend over, press their butt checks hard against the opposing person's butt cheeks, proceed to deficate simultaneously, at which point a single stream of poop will form at the intersection between their butt cheeks, and the now united poop will fall ideally to the direct centre of the toilet bowl below.

Hey Jeremy, I gotta poop now, you gotta poop now, there is only one toilet, let's do a fusion poop.

Fusion Poop by DrPriestopolous December 31, 2016

pooplear fusion 

a reaction in which the smell from two or more individuals flatulating in the same area fuse to create a smell so terrible there are no words to descibe it except "pooplear fusion". pronounced poop-lee-ar fusion.

Jeremy and Andy farted at the same time and cleared the room. They have created pooplear fusion.

pooplear fusion by Jteremy March 12, 2008