I used to believe that your poop was stored in your back. When your back could hold no more, that's when you pooped!
A childhood belief about weeing and pooing

others believed things like this
- I used to believe pee was stored in your stomach and poo was stored in your back.— Rob
- I used to think that poop was stored in your buttocks and that's why they're squishy.Anon
- i used to think that your butt cheeks is where your poop was stored. Anon
- I used to think it was true that only ugly girls poop and I thought I was an ugly girl because I poopedAnon
- I'm black, so as a child I used to assume that white people pooped peach the way I pooped brown.— Rick
- I actually asked my mother if mixing girls' poop and boys' poop would cause an explosion.— kraine