it's a pop culture term for the collection of websites, blogs, online forums, and podcasts promoting masculinity, strong opposition to feminism, and misogyny. You find a collection of men's rights, MGTOW, incels, pick-up artists, and fathers' rights groups. Overall it's part of the Men's Rights Movement.

What good is it?

Well, some of it could be good, like promoting masculinity or fathers' rights, or even MGTOW, if they could leave female hate out of it. Like, why can't masculinity be honored and appreciated without the rider that femininity is disgusting and must be dominated? Why can't fathers have rights in family court without trashing Mom? You know, for the good of the children? Why can't men be free to choose a bachelor life without shame or contempt without blaming women or harassing them all the time online?