A girl who dresses out of the ordinary or in mismatched outfits with tons of accessories. Could refer to a little girl playing dress up or a young woman who wears every piece of jewelry she owns at once, or wears different patterns together (such as stripes and flowers). Mismatched clothing and mismatched socks may also qualify.
Root word: garb
Friend 1: Look at Garbetta over there.
Friend 2: Holy crap, what is she wearing?