the combination of an
Upper
Decker (Pooping in the tank)
Dutch Oven (Farting - then pulling the covers over your partner's head)
and a Blumkin (Getting a blowjob while taking a dump)
In other words - Pooping in the tank while getting a blowjob with a
towel over the blowjob giver's head
this is a
class move - only performed at major burns (like Burning Man) or in Northern Virginia to settle a blood feud