I used to believe that a boy's balls and penis was for holding his pee. When his balls were full the pee filled his penis and made it big. I thought that because my brothers was big in the morning, when he woke up, but after he went to the bathroom it was small again
A childhood belief about weeing and pooing

others believed things like this
- i always thought it was Grape Balls of Fire instead of Great Balls of Fire— Courtney
- I also thought that meat balls were made from testicals— Glenn
- I used to believe that the clouds were made of cotton balls— Jeannie
- I used to think that Frankie Avalon sang, "Hey Penis, Oh, penis..." instead of "Hey Venus."Anon
- 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 thought planes collected clouds to make cotton balls.— Eddie