When she was young, my aunt used to think that the Beatles song 'The girl with kaleidoscope eyes' went 'The girl with kaleidos goes by'. She must've thought that 'kaleidos' was some sort of ailment.
A childhood belief about misheard lyrics

others believed things like this
- When I was younger, I saw Madonna's video for "Material Girl". I thought she was singing "I'm a Cheerio Girl"!— Greg
- I always thought instead of saying "Im a material girl" Madonna was saying "Im a cheerio girl".— Tiffany
- I used to believe that the words to Michael Jacksons "Liberian Girl" were "librarian girl".— Paul
- That Madonna sang "I'm a cheerio girl" instead of material girl— HN
- When I was young I used to think that Micheal Jackson was a girl.
— Jib Joseph - there was a young girl i used to know that would say 'onion' at the end of grace, instead of 'amen'— matt