When you cum on someone's back and your cum pools into the small of their back.
I made hot back soup with Tammy last night.
A strikingly handsome Canadian that is willing to barter sexual favors for a warm spicy bowl of jambalaya a la jar jar becks
Canadian boy:I snuck into your country in a pot of soup. I would like some jambalaya now
American girl: not till I fuck you six ways to Sunday soup back
Canadian boy: if we must...ok