Straight to the latest edition of the dictionary, sir. ;D
Hmm. I'm not sure if my Fakemon idea is too far fetched. It's an alternate route in evolution- the Stage 1, evolving from Gastly, as Ghost/Fire. It then can evolve into Banette (which was really just an excuse to steal that zipper mouth). I've never heard of a Fakemon being part of two different evolution lines...is it too different from the real ones?