In the song "Another One Bites the Dust" by Queen, there's a part where he goes "Bite-ah the dust-ah!!' really fast, and once I was listening to it in the car with my mom, and I said, "doesn't it sound like he's saying 'I am adopted!'?"
Then (and I don't think I'll ever forget this) my mom laughed dismissively and said, "That's what he IS saying."
I still have no idea why my mom would think he was saying 'I am adopted!", especially since it makes absolutely no sense in the context of the song.
A childhood belief about misheard lyrics

others believed things like this
- I used to believe that the song "Another one bites the dust" was "Another one rides the bus"— Emmy
- What about "Another one buys a Datsun." You know, instead of "Another one bites the dust.— e-man
- I thought pink wafer biscuits would bite me if I touched them. Absolutely no idea why.Anon
- I used to believe that the dust on top of doors was poisonous.— draconid
- My brothers to piss me off sometimes told me I was adopted, and that I was the housekeeper's kid.— ricolarno
- I used to believe that the dust at the top of doors was highly poisonous and could kill you.Anon