When something once known as something made by or popular with women is suddenly taken over by men and
essentially becomes something that women can't be
interested in/partake in anymore. Then said thing will be vigorously protected by gatekeepers who will try and keep women out of it and will shun women still in
the community. This can work in reverse with women also, which can be called Womanification.
Woman 1:
Remember when Star Trek was something you and I would talk about in our living rooms over tea before all of this convention stuff came around?
Woman 2: I remember that quite clearly, now I can't even mention I like the show around other fans.
Otherwise they'll bombard me with
questions like "Who was the very first captions' mother's name????" rudely and expect me not to answer, and when I do they just insult me and call me a 'fake fan' anyways!
Woman 1: Damn, the Mentrification of Star Trek really hit hard huh?