I used to think that volley ball was called "bally ball". I was always thinking "What makes that ball more bally than others??" I remember when I finally found out it was volley, it was a really big shock.
A childhood belief about sport

others believed things like this
- I used to think volleyball was actually called "ball-y ball"Anon
- I was told as a kid that when it thundered, God was playing basket ball. LOL! — Tony
- I used to believe that your brain was a red rubber ball inside your head.— Greg
- I used to think that your knee cap was called your knee ball.— Erika
- I used to belive that the New Years ball exploded, and people who were near it died.— Angela
- I used to believe that eye-lash curlers were eye-ball eating aliens in disguise— Eliza