In the song "All These Things That Ive Done" by The Killers i thought the line was "my erection, well it comes and goes.."
its actually "my affection, well it comes and goes" (!)
A childhood belief about misheard lyrics

others believed things like this
- I used to think that serial killers were "cereal killers" and would kill you by poisoning you cereal.— Jello
- When I was really little i thought serial killers were people who stole your cereal.Anon
- When people talked about serial killers, I thought that they put poison in your cerealAnon
- i thought the line "saving my face" from the KT Tunstall song of the same name was "shaving my face"Anon
- I used to think that the song"Stayin Alive" said "Staying In Line" like at school when I was little. — MacKenzie
- I thought the line in the song "more than a woman" was "four-legged woman".— boo