My Brother thought that thelyrics to the Who song, Who are you, were "Blue Walrus: needless to say, I can no longer listen to the song without thinking of him singing the song!
A childhood belief about misheard lyrics

others believed things like this
- You know the eifel65 song "Im blue da be da ba di"
I thought he said "I'm blue I'm in need of a guy"— Anna - When I first heard Bruce Springsteen's song, "Born in the USA," I thought that the song was "Porn in the USA"Anon
- That song that goes:
I'll never let you go...
I thought he was singing:
Another machine gun...
Haha.— Kelle - The buckinghams song "kind of a drag", i always thought they were singing, "Canada Dry"— bobbybobby
- i thaught the michael jackson song billy jean song said Janet's not my son Anon
- The song "Reverend Blue Jeans" turned out to be "Forever in Blue Jeans." Who would have believed that?— music lover