The act of taking a shit while squatting on the very edge of something, so that your shit drops at least a foot or two. Preferrably several stories up. Like taking a gargoyle shit.
Man, I was checking out this apartment with my girlfriend, and I realized the place didn't have a working bathroom, so while the realtor and her were in the kitchen, I dropped a massive perch off the balcony with my ass hanging over the railing.
Also, the curtain across that sliding door.