1. Ann Coulter is a ridiculously right-wing person, probably the most vile, vitriolic woman to ever have been allowed any amount of air-time on national television (except perhaps Roseanne), and most likely the anti-Christ. A number of books have been crapped out by this "woman" (I tend to think of her as a horse with makeup), none of which bear any resemblance to reality.
2. A generic term for a horrible, horrible person.
1. Try not to stare, dear, that woman can't help it - she's Ann Coulter.
2. So, you're racist, sexist, stupid, and Republican? Gosh, what an Ann Coulter.