A person from any large city who does not know how to drive well on roads that aren't straight and flat. You can tell one because when you get stuck behind them on a mountain road they take the curves at a snails pace, but when you finally come to a flat/straight stretch (where you could potentially pass their slow ass) they speed up like crazy till the next curve. Lather, rinse, repeat. --Insult is added to injury when the flat landers have a large truck/SUV/other form of 4-wheel drive and do this.
Learn to drive, you flat lander!