genderfluid
I despise people like this, simply because every single one I've EVER had to deal with was just completely obnoxious. That and they were always complete dorks. Like, the kind of kid that runs to the bus with his face mashed into his DS screen "GO PIKACHOO! USE YOUR TACKLE!"
That and otherkin. I can tolerate furries just fine, different strokes for different folks (or flaps, AHEM FLATFLYER,) but when people think they're like part cat or something, or when they claim they can communicate with animals... Just god damn.