When I was little I thought the song line "every time you go away, you take a piece of me with you" was actually "take a piece of meat with you." I imagined a girl leaving with a big steak or something. The worst part is my parents would hear me sing it and they thought it was so cute they didn't bother to correct me.
A childhood belief about misheard lyrics

others believed things like this
- I used to hear "Everytime you go away, you take a piece of Meat with you"
Makes a nice light snack I spose.— Linda - That at meetings adults sat on plastic chairs surrounding a large piece of meatAnon
- I used to believe that Steak was actually alligator meat. Anon
- I thought Spongebob Squarepants was a piece of Swiss cheese.— Melanie
- i used to believe that one piece of ear wax was actually called a wach. — rachael
- Olivia Newton John did sing let me hear your budgie talk! didn't she— J Scull