Inventing new dirty phrases - The Game

I think we should come up with some new disgusting or ridiculous sex phrases. What's keeping us from inventing the new "Hot Carl" or "Dog in a Bathtub?"

So, here's the challenge. One person will start with a random, made-up phrase and the next person will respond with a corresponding meaning to the term. Then offer a new random term of their own, to be defined by the next creative person.

I will start.
You come up with a meaning for this:

"Soupcan Leftovers"