Back in the late 80s, my wife loved that song that goes "Tonight I need your sweet caress, hold me in the darkness." That is, she loved it until she heard me mangle the lyrics - "hold me in your armpit". She never could listen to the song again, and never would forgive me for ruining it for her.
A childhood belief about misheard lyrics

others believed things like this
- I used to think the lyrics to Elton John's Tiny Dancer were "hold me closer Tony Danza."— kstawitz
- My friend used to believe that the lyrics to Elton John's "Tiny Dancer" were:
"Hold me closer Tony Danza"— I'm with stupid - If you hold your breath and make a wish under a highway tunnel it will come true....I still hold my breath :)— aj
- When I first heard Bruce Springsteen's song, "Born in the USA," I thought that the song was "Porn in the USA"Anon
- I thought God drove a car like ours - a Honda. The song DID say "fill the heavens with sweet Accords..."— Dummy
- "...Forgive us our just passes, as we forgive those who just passed against us..."— Speed Racer Fan