The Reverse Double Quaid, or RDQ, is an advanced sexual maneuver. It entails 3 steps. First, the quaid, where a woman shits into the ass of a man. The quaid is then doubled, when the man then takes that shit and shits it back into the woman's ass. This "double quaid" is subsequently reversed, by the woman taking this twice shat shit, and shitting it a third time onto the man's chest.
Dude, did you hear Jeff and Ashley did the Reverse Double Quaid last night? They must have done every possible sexual manuever by now.