Recalling a convo in which I was changing a baby boy and said something about his penis (I can't remember what, but I swear it was relevant at the time) and my mom had a fit:
Her: Don't say PENIS! It's not a PENIS! He doesn't have a PENIS!
Me: O...kay. What is it?
Her: His...his...his frank and beans!!!
Me: *headdesk*
Little boys get a million and one names for their parts (and I have heard them all), but when it comes to little girls, we get a lot of this:

I'm interesting in knowing how you HEFfas are dealing with this w/your kids. I had to stop one of my little ones from saying "bazooms" a few weeks ago. I told him the proper (and respectful) word is "breasts". His mom? Not thrilled with me. (Needless to say, her children are all just a wee bit...ignorant.) I also laugh at how my friend's husband's idea of properly bathing their baby girl is to splash water in her general direction. I said "vagina" once and the poor man had a freaking stroke. Apparently, his daughter does NOT have a vagina, thankyouverymuch!
See also:
Renowned Hoo-Ha Doctor Wins Nobel Prize For Medical Advancements Down There