I used to believe that penises had a bone in them ... Yikes! I don't know why tho', just assumed it, 'til I was like in 5th grade! I'm 29 years old, the word "Boner" was pretty popular back then ...
A childhood belief about rude bits

others believed things like this
- There was a popular rumor back in grade school that BUBBLE YUM gum was made with spider eggs.— Amber
- i used to believe that a sign in a cafe bone-fide meal meant meat with a bone in it— roy
- In first grade, I thought that if I've never heard of a word before, then it wasn't a word.— Destiny
- i used to belive that a boner came from skeletons.— Bilunjan
- i thought the phrase "getting a boner" referred to men getting their periods. — astrid
- Up until 8th grade or so, I was convinced that I invented the word "Fart"— Jonah