When I was about 5 or 6, my three older brothers were telling me that Yellow-5 makes your penis shrink. Well, everyone, including my mom drank a lot of Mountain Dew. Everyone except me. Anyway, Mountain Dew has Yellow-5 in it, so one time, in the car, my brothers were telling me that, and I turn to my mom and say, "So is that why you're a girl?"
A childhood belief about rude bits

others believed things like this
- a friend of my little sister's had 4 older brothers, so she thought that when you got older you grew a penis!Anon
- I used to think that little people in my penis had crayons and colored my pee yellow.— Ryan
- I used to think my brothers penis was a hotdog, until i put one in my panties and the dog ate it.— Amanda
- I used to think that the chorus of "mountain song" by jane's addiction was in a different language— nothing'sshocking
- I was convinced that hot air sinks. Why else are mountain tops cold, and Death Vally is so hot?— Not-my-wife
- I used to believe that when I went to the mountain I would find an ancient monster or find some treasure— Yazer Solorzano