What is Hylian?
1.
Someone who lives in
That dude's a hylian
2.
N. Someone so infatuated with the Legend of Zelda series that they've learned the Hylian language, have made Link battle sounds, have the Triforce somewhere on their body, refer to something in reality as something from the game, or all of the above.
Chick: That painting of that abstract almond kind of looked like a Deku nut...
Guy: You're definitely a Hylian.
See