I never understood this kind of logic when it comes to sleeping around, a woman is

****ty
*****ish
trampy

for sleeping around with a lot of men. But if a man sleeps around with a bunch of women or cheat on their girlfriend, they're a "real man"

It's called sexism, look it up.

Because we live in a patriarchal society

Yup.

and women aren't helping the cause by calling EACH OTHER those types of names. I can't count the amount of times I have seen girls at my high school go around attacking other girls for sleeping around; never once seen a guy do the same.

Sexism and double standards. It's disgusting tbh.

Men are dumb.

Probably because:
1. Natural selection, women are more likely to get screwed by STDs or pregnancy than men.
2. Women have always acted like sex was a favor towards men, which the men had to work for, making it seem like only men enjoy sex while women are just sex objects getting screwed.

I would assume it's a combination of society and who we are as a species. Whatever it is, this mindset has been present for a long time and has probably helped us adapt to an issue at one point in evolution.

Personally, I think both genders need to stop ****ting around with the amount of diseases present today.