The chorus of "Every Time You Go Away" (by Paul Young) goes: "Every time you go away, you take a piece of me with you." But as a child I thought it said "you take a piece of meat with you." I always was puzzled by that.
A childhood belief about misheard lyrics

others believed things like this
- That at meetings adults sat on plastic chairs surrounding a large piece of meatAnon
- I used to hear "Everytime you go away, you take a piece of Meat with you"
Makes a nice light snack I spose.— Linda - 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
- I used to think that a gherkin was some kind of piece of machinery. I wonder where I got THAT from...— Some Idiot
- I used to believe fax machines instantly teleported a piece of paper to who ever you wanted. Anon