Queen - Bohemian Rhapsody - I thought "Be-elzeebub has a devil put aside for me" was "Be-elzeebub, not a devil, but a sideboard, me" (Satanic Sideboards? Devilled Dressers? What other kinds of hellish furniture could there be?)
Hot Chocolate - "Where you from, you sexy thing" I thought that was - "Wear your thong, you sexy thing" (Makes much more sense!)
A childhood belief about misheard lyrics

others believed things like this
- In Queen's Bohemian Rhapsody, I used to think they were singing "Beelzebub has a devil for a sideboard!"Anon
- I always thought Hot Chocolate were singing 'You Sexy PIG' instead of 'You sexy Thing.— Bilz
- I used to think Right Said Fred sung 'I'm too sexy for my lamb' instead of 'I'm too sexy for Milan'.— Nineties music was great
- I used to belive that the word sexy (depending on your sex)
ment you were very girly/boyish.— MysticDarkness - i thought when you flushed, it went down to hell and that's what the devil fed the people in he..— Barb.
- I thought that Devil's food cake was invented by Satanists!— Dietrich Corby