I used to believe that vagina was pronounced "bachina." It was my cousin's fault. She pronounced it wrong at the age of 6. I believed this until 5th grade.
A childhood belief about rude bits

others believed things like this
- When I was a kid I believed that the number 11 was pronounced "onety-one"— Alicia
- i used to believe that 'island' was pronounced 'is-land' instead. I know im not alone on that one! :)
— Da KornMeal - I used to think that New York was pronounced "Yew Nork"Anon
- when i was little i used to think bumble bee was actually pronounced bumbow bee— cathy
- I used to believe that L-M-N-O-P was 1 letter, pronounced elemenopeeAnon
- I used to believe that the name Giselle was pronounced "gazelle"— Derek