Spray cheese was a type of cheese stored in a can.
It was considered a type of fast food. Even Ryan Sinclair, who liked fast food, considered spray cheese a "step too far."
A pizza parlour in New Port City used spray cheese for its teleportation process. The Thirteenth Doctor used a can of spray cheese while she and Graham O'Brien tried to use a moped to bypass blocked teleportation coordinates. (PROSE: Gatecrashers)