My parents told me when I was little that the little bumps you get on your tongue that sorta hurt were called "lie bumps" so if I got one, it meant that I told a lie. I believed this up until I was in high school....kinda not really thinking about what I was actually believing. I still call them lie bumps when I get them.
A childhood belief about general

others believed things like this
- My older brother told me that speed bumps were really dead people covered in cement.— Trina
- i used to believe that if you lie you really will get lie bumps.Anon
- When my wife was a kid, she used to think that highway speed bumps were for the blind.Anon
- I used to believe that speed bumps were dead bodies that had been paved over.— Natalie
- I used to think that girls' anuses were green. I remember thinking that as late as high school.— Jack
- When I was young, I honestly believed that I would die before I reached high school. Anon