1. A reference to pizza.
2. Often used by new Christians to replace their old habit of saying the name "Jesus Christ" in vain, or superfluously.
Dad was doing some carpentry last week and he hit his thumb with a hammer. He yelled out, "Dog bandit! Cheesy crust, look at my fricken thumb!"
Used when describing a penis that developed white muck in the wrinkels around the head due to poor hygiëne.
If it wasn't for my cheesy crust I would have shagged her on the spot.