Definitions by Norm Stern

Papillon 

A sneaky fart that waits patiently, then escapes your anus at just the right moment while you're asleep, often in public places. Based on the hit 1973 prison escape drama starring Steve McQueen.

I was so tired I passed out on the plane and made a Papillon, much to the dismay of the woman next to me.

Papillon by Norm Stern June 28, 2016