Lady parts
I was talking to this lady some years ago, someone who'd obviously never had anyone explain the inner female workings to her. We got on the subject of periods and it came out that her mother had told her that the thicker material that issues forth was old stuff from previous months. She didn't know that it was uteran lining, and not leftover either. The mother of another lady I knew thought that you only had one opening below, that blood and urine came out of the same place. It's tragic that people have so little understanding of their bodies.