A young person who is part of an artistic or social "scene"; also, a young person who tries to fit into a "scene", esp. musical, by wearing skin-tight jeans, chuck taylors, sleeveless shirts, girlish hair, rides a rusty beach cruiser and listens to indie bands. Often called "Indie Rats" or "Rat kids" - such young men and women are quick to drop the names of at least 50 bands on their Myspace pages.
Yelled at a group of kids leaving an Indie Rock concert "Sceeeeeenie Teeeeeeeeeenie".
Man, if those sceenie teenies dont turn down that damn music, i'm donna kick them in the dink.