When I was little I used to think that the line "rubber baby buggy bumpers" meant that the baby was rubber.
A childhood belief about speaking

others believed things like this
- I had an 18 lb. cat who ate rubber bands, I used to believe she could bounce away if not careful.— Dawn
- I used to believe that your brain was a red rubber ball inside your head.— Greg
- I used to believe that if I swallow chewing gum, a rubber tree will grow on my head!— Farry Aprianto
- I used to believe that Electricity was chiped overseas in large thick rubber boxes on ships.Anon
- My dad told me that the reason Birds didn't get electrocuted on overhead wire was they had rubber feet!!— Derricki
- on "highway to hell" i always thought it goes "baby see, baby do" instead of "hey satan, payin´ my dues"— Miss Understood