I used to believe the lyrics to Rupert Holmes' "Escape" were "if you like pina coladas, and getting cotton lorraine". I had no clear idea what "cotton lorraine" was, but I guessed it was some kind of facial.
A childhood belief about misheard lyrics

others believed things like this
- i used to believe cotton candy was real cotton after going to chuckie cheese and my brother told me— jennifer
- I used to think that cotton candy was made from actual cotton so I never wanted to try itAnon
- i used to belive that the cotton and the cotton candy were the same things and for this reason i ate both.— tiziana
- I used to believe that cotton candy was made out of cotton and sugar.— Ezy
- i thought cotton candy was made out of cottonAnon
- i used to believe cotton was made up of cat's fur— Umme Hani