What is your definition of a Femcel?

I see so many different takes on this.
Like I thought it was for women who are shut- ins that think all men are shallow.
But I’ve also seen the side of femcels being shut-ins that hate other women and also blame women for their bad success with men. Or lesbian femcels that basically hate women exactly in the way incels do (which seems very crazy to me as a lesbian)
Idk there’s also a broader group of self identified femcels that just hate men in general for a lot of (very deserved sometimes) reasons and also happen to be shut-ins.

Also there’s the idea of incels and femcels often going hand and hand with the alt right pipeline.