It's when you, after fucking the shit out of someone, lay them down on a counter, spread pizza sauce and cum on their stomach, then add cheese, pepperoni, and other toppings.
The Combination of twofoodicons the Cheese Steak and Pizza.
Bow Down to this holy creation crafted in the fires of Olympus by GOD to south the soul of man. After eating this holy of holys one must clear the palet with a glass of The "Pale Riders Wrath".