I grew up speaking English but had a lot of Korean-speaking relatives living in our house or in town. I thought there was some weird Korean word, "Bao mo men" that meant "poop". It wasn't until late teens or early college that I realized they were saying "Bowel movement".
A childhood belief about foreign languages

others believed things like this
- I used to believe that people who were speaking foreighn languages were just speaking gibberish.— Zoe
- I used to believe that anyone speaking a foreign language translated it into english in their head— galen
- Growing up, I thought that my family that spoke Yiddish were speaking in cursive.Anon
- That Hamstere are, genetically speaking, miniature bears.— charlotte
- I used to believe that if I spoke with whatever accent a language was in, I was speaking that language...— Renae
- In first grade, I thought that if I've never heard of a word before, then it wasn't a word.— Destiny