I had overheard a kid in school talking about naming his cat Boner and I had no idea that the word had anything to do with the male anatomy. I had assumed he named his cat after some famous motorcycle rider or wrestler and because I liked this kid I decided imitate him and name my new pet frog Boner. My mom gave me the weirdest look when I told it's name and I didn't find out why until 3 years later. It doesn't help that I had written Boner on the back of all of photos I have of my frogs.
A childhood belief about rude bits

others believed things like this
- 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
- Until junior high school, I thought Monty Python was a wrestler.— Jamie
- My little sister's imaginary friend was Kit the talking car from that show Knight Rider.Anon
- When I was younger, I used to believe toads were male and frog were females.— Claude-Eugène
- I thought the word mailman was male man and it seemed dumb to me as aren't all men male?— andalite