Transfloof (floofinition) – a housepet who behaves as though they’re another species.
In use: “It was altogether a strange house, full of tranfloofs. A black cat hung around with the dogs, acting like them, while a miniature poodle preferred the cats’ company, doing everything they did, and doing a strange yipping meow. As icing on the situation, the bird barked, meowed, mooed, and talked like the humans. It was altogether chaotic, but funny.”