A very special type of ritual, thought by many to be a myth, to summon the spirit of the devil. The ritual is performed by two partners, one male the other female. They both have to engage in anal sex until the male is primed for ejaculation. After priming has occurred, the male will quickly pull out and proceed to blow his load in the female's mouth while chanting under his breath, "ATMR" continuously until the female has completely swallowed the semen.
John - "Hey, can you come tonight to watch the football?"
Mike - "Sorry dude, I made a promise to my girlfriend that we were gonna do an ass to mouth ritual tonight..."
John - "Again?! *sigh* OK."