I used to think that in The Monkees' "Last Train to Clarksville" they actually sang, "Last train to cocksville". Ew...
A childhood belief about misheard lyrics

others believed things like this
- i used to believe that if you put a penny on a train tracks that it would derail it — ROSS
- For some reason, I used to believe that women only got raped on train tracks.
— Jessica Tinch - Billy Squire sang about "My Kind of Lover". My wife sang about "My Candelabra"— Wailerman
- Even though the title is 'How Bizarre', I always thought he sang "help is on"...Anon
- I used to belive that if I put my finges in my ears when i sang noone could hear me— Helen
- I used to think that birds sang in different languages depending on the country they were in!— Sarah