Just because you hate somebody doesn't mean that person is a slut. That person may be a jerk, bratty, annoying, bitchy or whatever, but if she's not a slut, why call her that? Even if she is one, it's still not a very nice thing to say. The point is, no matter how much you hate somebody, don't label them something they're not. How would you like it if that happened to you? (U_U)