Cheese check (cheez Czech) is less of a term and more of a tool. used in modern dialogue to provide hype, the term is a Swiss Army knife to keep a conversation light and fun. Say it fast for more fun.
*walking to class in the morning feeling tired* Cheese Check! *mood brightens and walk becomes fun*
Cheese famously comes in wheel form, usually this is reserved for presentation and is usually cut and sold in 1/8ths unless your name is Alison Hall at which point the cheese wheel is famously swallowed whole, leaving a cheese wheel like shape in the gut.