Thanks to my sister, our family word for female private parts was tuffet.......due to her misunderstanding a particular nursery rhyme......!
A childhood belief about rude bits

others believed things like this
- When I was a child, I used to believe that armpits were private parts— Duda Gueiros
- From a misunderstanding, I thought everyone’s ears were the same size.— Enrico
- i used to think that the word e-mail was a sex, like male, female and e-mail.
I'm so thick!— Confoozed - My wicked sister told me that baby's come from the armpit-didn't matter male or female.Anon
- I used to think Yiddish was pronounced to rhyme with Swedish.Anon
- I used to think that to desex an animal meant to turn it from a male to a female or female to male.— Phil