My husband and I listen to tons of CDs on road-trips, one of which is by Pearl Jam. Took us a few trips to figure out what the song really was about when we thought they were singing either "Low-Flying Version of a Pelican" or "You're a Fine Version of a Pelican" (it's "Glorified Version of a Pellet Gun"), but we still like it our way.
A childhood belief about misheard lyrics

others believed things like this
- i used to believe a dog was the male version of a cat.Anon
- We had a male cat that wasn't neutered. I thought his testicles were just the cat version of a butt.— Robyn
- When I was a kid, I thought the musical Mamma Mia did songs from the A*Teens (the teenage version of Abba)Anon
- I thought that "heck" was a less horrible version of hell for people who were only KIND OF evil.— Oizys
- I used to believe a pickle was a smaller version of the cucumber.Anon
- I used to believe that a 'wolverine' was the girl version of a wolf. — Jelly