My grandmother told me that defecation was called doing a "moo-moo". To this day, I can't hear the name of the item of clothing, "mumu" (or indeed "mumu pit cooking") without embarrassment.
A childhood belief about weeing and pooing

others believed things like this
- my mom told me that if i went inside the dresses at the clothing store, the dress would eat me...Anon
- I used to believe that if a item wasn't "on sale" then you weren't aloud to buy it.— Meagan
- I used to think vending machines had a person inside, who would hand you the item that you'd selected.Anon
- Until I was 8 I used to believe that if clothing went into the wash more than once it would turn into gold.— Ben
- I used to believe that a strip club meant that you took your own clothing off — Adam
- My sister thought a fruit machine (the gaming device) could turn one item of fruit into another.— Richard Davies