Having facial features that produce a mouth shaped like the grill of late model Korean-built Kia automobiles (most models starting in 2010/2011 have this grill).

Symptoms of this disorder are usually visible when smiling, which produces a (facial) grill where the center upper lip and center lower lip are closer to each other than on either side of the face. This matches the (automotive) grill of late model Kias, and also makes it easy for those with the disorder to perform oral sex on two males simultaneously.

This is not to be confused with "chiaface", which is a disorder that causes a green beard to grow when the face gets wet.
Shut the f*** up, kiaface, nobody gives a crap about your hip hop hampsters or anything else your daddy bought you.
by off a cough July 7, 2011
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