Someone who either has relatives, ancestory, or has lived in both Australia and England. Usually, they acquire a bit of both accents, which results in a way cool sounding accent. Also refers to the accent of which a Britfish person will have.
A highly intelligent individual who has an IQ that exceeds infinity.
Batfish is too smart for any living being, aside from Batfish himself, to comprehend.
Yo that Batfish guy, he too dang smart for my brain to get, I think my brain cells are imploding.