Womansplaining.
Or is that a sexist term,whereas "manslaining" isn't?

or are a lot of women looking more like men these days.

There is womansplaining too and those ladies need to shut their pie holes. I am a woman. That term is awful and we should stop making up horrible words like that.

"...then their are"

Oh dear. Worry about your first language, darling, not the "female colleague" who is probably fed up with your illiteracy.