The Hamlet Project

I’m very curious about what these bugs and goblins are that Claudius has described in Hamlet’s execution warrant. Like, are they literal goblins? Is Claudius claiming that Hamlet has become possessed by demons of some sort? That is, if the King of England were to let him speak or even allow time to sharpen the axe, moths or roaches or flies or beetles would pour out of Hamlet’s mouth and then England would be sorry they hadn’t taken off his head as quickly as instructed?
It’s hard to imagine anything besides supernatural explanations that would demand such a speedy execution.