The ultimate sexual act between a man and a woman, when the man dumps gasoline all over himself, lights himself on fire, and then runs down a flight of stairs carrying the woman with his mankong in her vag the whole time.
Named so for it's resemblance to a Spartan riding his chariot. The act of sodomy using Tabasco Sauce lubricant.
(Note: For authenticity, employ riding crop as spanking implement)