I'm mildly annoyed when I see parts of a portmanteau capitalized. It's wormhole , not worm hole , so the CamelCase would be Wormhole , not WormHole . A really neat idea, though!
To me, and I think everyone else who regularly uses OOP, method names are meant to be verbs -- this would be a predicate, testing whether or not the object is a wormhole.