Cheese Play

A sexual act where a couple collects their cheese like substances (smegma if male), formed after months of not bathing or cleaning, and generally uses it to perform various acts, such as lathering, eating, spitting to and fro, using as lube, mixing each other's together, mixing with food, etc.

Aw dude my I woke up to the smell of my aunt and uncle doing Cheese Play in my room again.