I also thought that the function of testicles was test your pee. (Test for what, I don't know. Diseases? Impurities?).
After all, they are called TESTicles.
A childhood belief about rude bits

others believed things like this
- I used to think that your cuticlas were called testiclesAnon
- I used to believe that testicles were called tenticlesAnon
- When i was little, i thought that when i grew up i could only have two kids because i only had two testicles.— nick
- I thought my testicles were pickled onions I had swallowed wrongly.— jon
- I originally thought "balls" was slang for buttocks instead of testicles.Anon
- We had a male cat that wasn't neutered. I thought his testicles were just the cat version of a butt.— Robyn