Ce înseamnă nemisogin? Există în Dicționarul român? Dacă da, în care?

Nu cred ca exista.

In DOOM2, in mod sigur, nu exista.

Da existã
A Mangina is a self-depreciating man who subconsciously hates himself and blindly believes women are superior to him. He has been raised to think masculinity is inherently wrong - perhaps even a genetic/evolutionary/social flaw - and must be corrected by embracing his "feminine side" to the point of losing the very qualities that make him male. He believes women are beautiful, innocent angels and men are filthy animals who need to be controlled.

Manginas see women as the ultimate being and place them on a pedestal, focusing only on sex or the satisfaction of women all the while not giving a damn about his fellow man.