Gremlin is a furry critter. Upon the mistake of trusting them they can turn sides and kill you. in 1800 there was a famous gremlin named erin that killed over 10000 people. today she is now best friends with the grim reaper. and can kill you at anytime...
(by the way, I'm not talking about the little monsters.) gremlins are a somewhat unheard of class in society. They are very different, somewhat resembling greebos.
Fashion: Gremlins always seem to be wearing shorts, and shirts with a logo or band on it.
Looks like: They usually have very very long hair, and for the most part if their hair is straight they will curl it. The ones with curly hair naturally work the best.
Acts like: Punkish, in the sense they are very rebelious, they don't give a rats ass for authority or fitting in with the mainstream. They hate preps and chavs, naturally and tend to be friendly to anyone else.