In my fifth grade class years ago, someone said the word "boner" rather quietly. I asked "What's a boner?" but was quickly shushed by my classmates who said it was a bad word. I logically figured out it had something to do with a bone, like the typical white kind with rounded ends that's in your arm. It took me a long time to realize that there was nothing "naughty" about a skeleton!
A childhood belief about swearing

others believed things like this
- in grade school, i used to believe that test tube was a naughty word and was embarassed to say it.— miss sara
- i used to belive that a boner came from skeletons.— Bilunjan
- i thought the phrase "getting a boner" referred to men getting their periods. — astrid
- I used to believe that farts were triangular with the ends rounded so they wounded hurt.Anon
- In first grade, I thought that if I've never heard of a word before, then it wasn't a word.— Destiny
- I used to believe that "nuptial" was a naughty word. I thought it meant nipple. XD— Sara Hagen