For no apparent reason i used to think i had three balls. It was not until much later that i actually found out what a ball was.
i also had the belief that a testicle was a bone behind the penis as a result of my mother's embarrassed and impatient explanation. i was very confused when my brother's testicles became 'twisted' later that week.
A childhood belief about rude bits

others believed things like this
- I originally thought "balls" was slang for buttocks instead of testicles.Anon
- When i was younger i thought that the left testicle carried boys and the right testicle carried girls.— Ed
- i used believe and erection was when your testicles went into your penisAnon
- i used to belive when i got an erection that if i bent my penis it would break like a bone— beep41
- i used to believe that a sign in a cafe bone-fide meal meant meat with a bone in it— roy
- I used to think that girls had "balls" and not boys, and the "balls" were slang for breastsAnon