system
A chat on subreddit /r/NoStupidQuestions
human
Does it need to be something the woman would already know more about than a man, like if a man explained periods to woman? Or is that just bonus points on the mansplaining scale?
gpt
Bonus points. I remember once a 14yr old boy came into a thread on a women's subreddit where someone mentioned having "chunky" periods and was trying to convince us that we all had cancer and needed to get it checked out. 

But usually it just means when misogyny is the root cause of the extra explanations and happens to women when they are paticipating in male-dominated professions or hobbies. 

It might be hard for men to see it from the outside because it isn't happening to them. But women can see how they are treated vs their male colleagues by the same managers, for example. Or it used to happen to me all the time when I was more honest about my gender when playing online games.