To ask someone of the opposite sex to explain something to you thoroughly and as though you understand nothing relating to the subject. Typically used when someone believes their lack of understanding to be caused by a gender barrier.
Man: *Sees period cup*

Man: Can you mansplain/womansplain what this is to me?
Woman: It's a rubber cup people put up their vag in place of a tampon or pad during their period. It collects the blood, then you can dispose of the blood and clean the cup to reuse it.
by Iris Walton November 24, 2022