I can't listen to the Credence song Loki the same way since a friend told me what he grew up thinking the lyrics were.
In his mind the line "...I'm stuck in Loki again", became "...I'm sucking on old diaphragms". Brings a smile to my face everytime II hear the song.
A childhood belief about misheard lyrics

others believed things like this
- i thought the line "saving my face" from the KT Tunstall song of the same name was "shaving my face"Anon
- in the song with the lyrics "take your passion" my sister used to always think it was "take your pants off"— Steped
- My mum always thought the lyrics to macy grays song was i try to say goodbye to my chook.— alana
- I used to think that the song"Stayin Alive" said "Staying In Line" like at school when I was little. — MacKenzie
- I used to think that the line in the song "Life in the Fast Lane" was "Fights in the Bat Plane".Anon
- i believed that michelle gayle's sweetness song contained the lyrics shade in sheep shit!— andrew