There is this Christmas song that has the lyrics, "we will have some pumpkin pie" and I always thought it was we will all have some "F___in" pie". The sad part is I thought this becasue that is the way I remember my grandmother singing it.
A childhood belief about misheard lyrics

others believed things like this
- Remember the old Tubes song "White Punks on Dope". Thought they were singing "White Folks are Dumb"
— WailerMan - I used to believe that if I ate pumpkin, I would change into Cindrella. So I was always ate pumpkin.— Mine
- That song that goes:
I'll never let you go...
I thought he was singing:
Another machine gun...
Haha.— Kelle - My mum always thought the lyrics to macy grays song was i try to say goodbye to my chook.— alana
- The buckinghams song "kind of a drag", i always thought they were singing, "Canada Dry"— bobbybobby
- When I first heard the song "Constant Craving" by KD Lang, I thought she was singing "God save gravy."Anon