A member of the female sex that hails from
Nassau or
Suffolk county; technically, Queens and Kings (Brooklyn) county females are "Long Island" girls, but out in the real world you'll get looks for saying that.
Many of them do strange things like wear their hair like they're Native Americans going to war,
fake eyelashes, too much make-up etc. At least they put a great deal of care into their appearance.
Some of them come from well-off families. Some of the girls from Long Island go to college at the University at Buffalo; this saves them about $15,000 a year in tuition vs. most NYC universities, which they proceed to
bilk their parents out of by getting them to buy them a new car. Frankly, I'm impressed by their cleverness.
Overall, they're girls like any other. I personally have found the Long Island girls I've met to be very friendly and sweet (and I'm not the best looking guy by any means), so I would say the stereotype of them being shallow is a little inaccurate.
No comment on the stereotype about them being
airheads, though.