I spent a stupidly long time--well past high school--trying to figure out the term "blow job." I knew about oral sex, but I just didn't get the "blow" thing. I couldn't understand how someone blowing on a man's penis would feel good--wouldn't it just be cold?
A childhood belief about oral sex

others believed things like this
- I used to think that if you didn't blow your nose and just sniffed the snot up, you head would blow up.Anon
- Thinking a blow job was someone just blowing on your butt.... or in your ear— Lynn
- when i first heard the name "blow job",i thought the meaning of that word was blowing a snot out of your nose.— myuka
- when i first heard the term, "blowjob" I thought it had to do with those Blow Pop suckers — :P
- I used to think blow jobs were when you held a penis and blew on it. Of course this was when I was 12.— Marisa
- i used to believe that a blow job was when you got payed to blow up ballowns— blown away