A female with a mullet who drives a purple Ford with a rainbow colored cat (pussy) sticker on it. Also wearing pants pulled up to her tits with a belt so tight you can see her "man-like" ass.
Usually more butch but there are femmes who i think qualify as uberdykes. They love women and are sometimes very protective of women. They go out of their way to fix things, buy gifts, and spoil girls they have crushes on.
The difference between an uber dyke and a man:
A: A Vagina
B: They do nice things for women but most don't expect anything other then your friendship and a thank you in return. Unlike most guys who think they deserved your mortal soul just because they said you were pretty or something.
Girl two: The Uberdyke with the boots and flannel?
(P.S. Most Uberdykes don't wear flannel anymore...at least not where I live...though I've heard stories of some other places...)