It's called the vulva
If you ask your child, especially your daughter, "What is the vulva and where is it?"
From what I've noticed, not many girls know.
But, if you asked your child, girl or boy, "What is the penis and where is it?"
Most kids know that answer.
Even if you think they have a serious case of diarrhoea of the mouth, just keep listening
This morning at the gym, my trainer said something that I fully agreed with. (I won't divulge the topic because the discussion wasn't really rated-PG, or PG-13.)