I read a lot of FanFictions (stories about shows that people just borrow the characters from) and for years I wasn't really up on the sexual slang. And of course, because I was curoius like all preteens and earily teenagers are, I read some light smut. And I had no idea that masturbating was called anything but that: 'masturbating'.
So when two male characters would talk about 'jacking off' or even *more* confusing to me the British 'wanking off' I just assumed it was some strange thing that was unique to those characters.
It tooke me a couple of months and some reading of more hardcore stories until I fiugered it out.
Same thing goes with a blowjob.
Also, on a side note, I thought "being in the closet" just meant you were shy.
Imagine how imbarssed I was when I told my mom one of my best friends was in the closet, and she said: "Jared's gay?"
I was mortified. I'm so glad now at 17 I know more than I did.
A childhood belief about rude bits

others believed things like this
- I thought Bonnie and Clyde were fictional characters.Anon
- When I was smaller I used to think that if I broke the Tv the characters would come out x]Anon
- i told my mother that sex was when two people get naked and tell ghost stories.— linds
- I used to believe that a street sign that read "Dead End" meant that there were dead people buried there.Anon
- I used to believe that an erection only occured after a male was married and that it was a permanent thing.Anon
- I didn't know Reindeer existed, I thought they were just christmas animals for storiesAnon