I used to believe that Bryan Adam's "Summer of '69" was "I got my first real sex-dream" instead of "I got my first real six-string"
A childhood belief about misheard lyrics

others believed things like this
- i used to believe dragon ball z was real
and namek was in another dimension
and every show on tv was realAnon - I used to believe that boys were like robots and had no real feelings, that they were not even real people.— Lisa
- i used to believe that the telly tubbies were real because the rabbits are real!!— hotty
- the beatles song 'mean mr mustard' says "shes a real go-getter", i was sure it was "shes a real coconut"...— sally
- the summer that I turned 11 I waited out side on the step all summer for my hogwarts letter... ;D — Ginny weasley... not really
- I used to think the lyrics of "Boys of Summer" said "poison summer"— Lindsay