When I was young, I thought the line from the (U.S.) national anthem, "the dawn's early light," was actually "the dawnzerly light." I couldn't for the life of me figure out what dawnzerly meant.
A childhood belief about misheard lyrics

others believed things like this
- I used to think light sabers were called life savers.— alison
- I used to believe that the yellow light in traffic-lights meant Go Faster!— M. L. E.
- when i was really young, i couldn't figure out why i can't get older than my older sister.— angela
- In "God Bless America" I thought it was "With the light from a bulb" instead of "from above."— Carol
- When i was little i always thought there were little men inside the traffic lights changing the light— Kiley
- I always thought the song Blinded by the light went "Wrapped up like a dousche, another runner in the night"— Dawn