Someone who pretends to be asian, but really isn't. Usually an asian obsessed person
Person 1: "Why is jenny being such a fasian?"
Person 2: "I dunno, first she starts claiming she's from asia, then she got that hair cut like them asian girls do."
Often obsessed with anime, manga and/or legend of zelda, and has frequent conversations about these subjects with their fasian friends.
Jon: So I'm watching Hatare Fusakashi Real! the other day and it's this totally R-rated ep where Kiwasako rips her shirt off... man I'm jizzing in my pants just thinking about it.
FuckingAsian. A typical Asian constantly at the library, drives an extremely nice car, insane amounts of technology, pocket translator and is completely oblivious to cars when crossing the street.
noun: one who is a particularly fat, or chubby asian. Usually happier than most, a cheery, overweight person of asian descent. Fasians can be your best friend, or your worst nightmare. Don't mess with a fasian.
Bob: hahaha he is so chubby!
Joe: Shut up, bro... He's a fasian.
Bob: oh, that explains it.
Joe: Don't mess.