A slut is a girl who sleeps with other guys, but won't have sex with you.
1. If a guy is pissed off that the attractive girl in high school won't even look at him, but has sex with other guys, he'll say "she is just a slut" to make himself feel less bad about missing out.
2. If a guy is dumped
by a girl for another guy he'll call her a slut to make her feel bad, perpetuating the notion that she has betrayed
) ongoing obligation
towards him. This is an extension of an old warped idea that guys have rights of ownership
over their girlfriends or wives.