This is actually my friend's belief, not mine.
Okay, you know the song "Come What May" from Moulin Rouge? The part where they say "Want to vanish, inside your kiss"? Yeah, my friend, was completely convinced that they said "Want to varnish, insert your kiss." It took a lot of repetitions of the song and my insisting before she would finally concede that I was right not her. Oh and we're almost 17, and this was less than a year ago.
A childhood belief about misheard lyrics

others believed things like this
- I thought Moulin Rouge was a person.Anon
- In the song "We're going to Ibiza", my friend thought they said "we're going to eat pizza"!— Smaranda
- My friend's sister believed the lyrics to Gazza's "Fog on the Tyne" were "Fog on the dinasaurs mine all mine"— Suzanne
- I used to believe that if you kiss a frog then the would would really turn into a king.— jing
- I used to believe that if I could kiss my elbow that I would turn into a girl (the opposite sex).— Rusty
- My sister told me that if I could kiss my elbow I would change into a boy. I never disproved her on this.— Aussie