I was told that thunder was the sound of clouds bumping together after being split by lightening. Therefore, I believed farts were the sound of turds bumping together in your bowel.
A childhood belief about farting

others believed things like this
- I was told as a child that the sound of thunder was from angels bowling in the clouds.— Patty, NY
- I used to believe thunder was the sound of God rearranging his furniture.Anon
- I was sure I had it figured out: exploding turds caused farts.— al
- I always thought thunder was the sound of the crumbling buildings, after lightning had struck them.Anon
- My mother always told me that thunder came from clouds colliding with each other.— Martijn
- I think thunder is the clouds fighting and bashing eachother and lightning is fire balls from the sun.— Crazy Cowgirl MADI