Labeling someone a slut - or a narcissist, predator, or whore - isn't rape, but the emotional intentions are the same. It's about taking someone's Power.
Targets are stuck between a rock and a hard place, right where the Narcissist wants them to be, damned if they defend themselves and damned if they don’t BUT basically isolated and defenseless. Gregory Zaffuto After Narcissistic Abuse
Only 1% of the population are narcissists according to the best research...but there are a lot of myths perpetuated by angry people angry at other people for hurt feelings. You'd never know that reading Social Media.