I've got two songs that I misheard the lyrics to. One is Anthrax's "Belly of the Beast". When the singer sings "You shovel your conscience into the grave", I believed for the longest time that he was singing "You show your prostitute to the grave". (??)
The other one is Megadeth's "Symphony of Destruction".
Real lyrics:"Dance like marionettes, swing to the Symphony of Destruction."
Misheard Lyrics: "Dance like a million ants, sing to the symphony of destruction." [:) I was weird.
A childhood belief about misheard lyrics

others believed things like this
- Actual lyrics: "I've never been your beast of burden"
My lyrics: "I've never been your big suburban"
— Big Suburban - When I first heard Stawberry Fields Forever, I misheard the lyrics as Strawberry Fields For Trevor.— Matt
- I believed I could tap dance by moving my feet real fast. — Aussie
- i believed that michelle gayle's sweetness song contained the lyrics shade in sheep shit!— andrew
- My friend's sister believed the lyrics to Gazza's "Fog on the Tyne" were "Fog on the dinasaurs mine all mine"— Suzanne
- Never point at a grave, if you do your finger will rot off.— KL.R