Okay, so, the idea is he's a trapdoor spider that hangs out in discarded fast food bags and disguises himself as a cheeseburger (Notice there is no meat or cheese. The inside of his mouth is just colored brown and his fangs are cheese-colored, while his eyes look like sesame seeds)
Maybe he could enter battle in disguise, like Mimikyu does, and after he gets hit once, he pops out of the fast food bag and surprise!
Either Pure Bug type, or Bug/Ground (Since it's food that's been on the floor) or maybe Bug/Poison, since food that bites back seems like a "Poisonous" concept.
