Sloppy Stable 

When two bronies have sexual intercourse while they smear themselves in each other's fecal matter.

"Though it is not common, at some brony conventions people like to partake in sloppy stables."

Sloppy Stable by CarliahEbondell July 19, 2019

slippy stanley 

when your best friend poops in your mouth and then you shart it out into your other best friends mouth.

Katie that slippy stanley you gave the other day was phenomanal.

slippy stanley by Laurelana August 21, 2006