I used to think blowjobs were when you breathed/blowed on a guy's penis
A childhood belief about oral sex

others believed things like this
- I used to think farts were air you had breathed in and out loads of times and was 'used'Anon
- i used to believe that if you swallowed gum, when you breathed in, your stomach would stick to your back— cope
- I used to believe that if I pumped in my sleep and breathed it in I would turn into a rotting turnip!— Quako
- I thought everyone only had a set number of breaths before they died.
I breathed slowly for a long time.Anon - I used to think that Frankie Avalon sang, "Hey Penis, Oh, penis..." instead of "Hey Venus."Anon
- I used to believe that gay sex involved a man sticking his penis inside another man's penis.Anon