In the Peter Gabriel song, "Don't give up" I thought that he sang "Donkey Butt" instead of "don't give up" in the song and I never really understood why...
A childhood belief about misheard lyrics

others believed things like this
- I thought Maria Carey's 1998 ballad was 'I'd give my arms' instead of 'I'd give my all'.— Briony Maggs
- i thought that new disney peter pan song said "spread your legs" but its really "spread your wings"— shasta
- i thought I got one year older when my family sang the birthday song.— I am the ghost
- I was told that for every christmas carol i sang before christmas time santa would give me one less present!— K
- for my little sis -
Paul McCarty song "Band on the Run" but when she sang it it was "Man has the Runs"Anon - I used to think that the actors on tv shows sang the show's theme song.Anon