i believed the f-word was fart until i was about 8.
A childhood belief about swearing

others believed things like this
- When I was little I believed that the "F word" was fart. My mom laughed at me when I told her.Anon
- I thought the f-word was fart.— Caroline
- I used to think that fart was a bad word and then i heard my mom say it once and I was so shocked.— Tara
- Up until 8th grade or so, I was convinced that I invented the word "Fart"— Jonah
- I once told a friend of mine that if you held in a smelly burp, it'd turn into a fart. She believed me.Anon
- i used to think that the word "stupid" was a curse word, ranging in scale right beside the "f" word.Anon