When after sexual intercourse (he) is hit by a wave of immense relaxation and tiredness brought fourth by being completely satisfied from being deep in (she) vagina, comparable to the sleepiness one experiences when taking Melatonin.
Man: "Damn, my girl hit me with that Vagitonin last night, I slept through all twelve of my alarms, the eviction notice being nailed to the door, a shooting at my apartments and just woke up (@5pm)"
The precise art of cunnilingus inititiated by placing the tip of the nose on the anus with an elongated tounge and proceeding in one firm and defined motion moving the face until reaching the pubic mound ironing out the creases