When I was about 8 or 9 I overheard boys at school bragging to one another about their huge penises. "Mine is so big it hangs past my knees!" etc. I was concerned, so I asked my older brother (15) where he put his penis when he went #2. He looked at me confused, so I asked, "Well, does it dangle down in the water and go down the hole, or do you flip it over your shoulder?" I was very mad when he started laughing hysterically. I really thought boys had 3ft long penises.
A childhood belief about rude bits

others believed things like this
- I used to believe both boys and girls had penises so i thought sex was when they tied them together.Anon
- I used to think that hot dogs were made from boys' penises.— never eating hot dogs again
- When I was about six, I believed that boys had buttons on their penises--one for pee and the other for poop.Anon
- When I was younger I thought men had two penises, one for peeing and one for having sex.Anon
- I used to think that boys didn't get their penis until they were 18 which was legal adulthood! — beckles
- I used to believe that condoms were weared by girls and boys
both. And they both have penisAnon