I was really taken aback when someone told me what "toe jam" actually means. Before that, I had heard the term quite a few times, always thinking it was the name of some rock band.
A childhood belief about speaking

others believed things like this
- My friends and I used to believe that if you planted a rock, it would grow a rock tree. Anon
- I used to believe the the Elton John song, "Crocodile Rock" was about a Crocodile, named Rock.Anon
- i used to believe the song "band on the run" was "band on the rug"— someone
- My little sister told all her friends that Clint Eastwood was the singer of the band Gorrilaz.. ^^;
— Saffy - I told someone once that my favorite band was the Funkel brothers- Simon and Garth.
(Simon & Garfunkel)— Josie - My parents told me that when the ice cream van was playing music, it means he's run out of ice cream :(Anon