I used to think the song from the 90's, 'Move It', was about vaccuming. To me, it sounds like 'I like to vroom it vroom it', because I thought that vroom sounded like a vaccuming. This is really embarrasing, since I liked that song, and probably sang it out loud a lot.
A childhood belief about misheard lyrics

others believed things like this
- i thought I got one year older when my family sang the birthday song.— I am the ghost
- I thought the "physically fit" lines in the song "I Like to Move It" were "fizzy coloured feet".Anon
- 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
- Until I was about 15, I beleived my Father was the person who sang the "Cheers" TV Show Theme Song.— Dustin
- I thought farting was magical wind, and if you did it loud and hard, you would be able to move yourself.— Blake