I used to beileve that eggs over medium were called dip toast eggs. I didn't realize till I went to a resturant and tried to order a dip toast egg, that they weren't called that.
A childhood belief about general

others believed things like this
- i used to think easter island was called that because a giant bunny ran around and layed eggs there. — Oliver
- I used to believe that only brown eggs came from chickens. I thought white eggs were made at the store— Destiny
- When I was a kid, I used to believe that cadbury cream eggs real uncooked eggs in the middle Anon
- For a while, I thought hand grenades were called "hen grenades" and they were made of rotten eggs.— Athazagoraphobia
- I used to think that the toast would never pop out of the toaster if you watched it while you were waiting.Anon
- I believed that my mother invented toast.— Helen