When I was really little, I would remark on how fat people were because I didn't realize it was rude. My mother explained it to me, but rather than understanding, I figured that "fat" was a swear word. The next time someone overweight walked by, I declared, "Mommy, that lady is NOT THIN!"
She also told me I could never say the word "ain't" so I assumed it was a swear. I was very distressed, because I was afraid this meant I wasn't allowed to sing "The Old Gray Mare" anymore.
A childhood belief about swearing

others believed things like this
- i used to think the word "suck" was a swear wordAnon
- I used to believe that bizarre was a swear word.Anon
- I used to believe that “shut up” was a swear word.Anon
- i used to believe that if you said a swear word you would turn into the opposite sex the next day— jess
- My cousin used to think that "body" was a swear word.— Jordan
- In first grade, I thought that if I've never heard of a word before, then it wasn't a word.— Destiny