In second grade it was common knowledge among us boys that the way you made your penis bigger was by holding pee in for as long as you could.
A childhood belief about rude bits

others believed things like this
- It was common "knowledge" where I lived that if you picked dandelions then you would wet the bed.— Holly
- I learned in the first grade that the Sun was a star just like all the other stars, only it was MUCH bigger.— Geoff
- 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 - when I was little, about 4th grade, I thought that when a guy had an erection his penis turned colors...lmao— peanut
- i used to believe that a penis was the same as a vagina except really long— *stupid*