What exactly is "slut shaming", and why is it so wrong??

Same with my D and her friends of both genders. In her peer groups since HS, it is axiomatic that women are entitled to equal rights, that they have not always had those rights and in some matters still don’t, and that the anti-equality forces are still strong and determined, and are to be resisted.

D’s boyfriend and the other young men she knows are far more likely to be found at a Planned Parenthood protest than they are to be found complaining that women are strange and a little dangerous. They get it. They are allies.