In the country song, Shoulda Been A Cowboy, I always heard, “Wearin’ my sex shoe” instead of “Wearin’ my six shooter.” It took at least a decade for me to realize the error. I also misheard, “Bacon apology after a fight” instead of “Fake an apology after a fight” in the song My Father by Jax. I have realized the error but still sing the lyrics about bacon because I’d rather someone give me bacon as an apology instead of faking an apology.
Everybody Wants to be My Baby by the Beatles. My version is so far off I don’t think anyone would understand how I thought it.
The line
“Went out last night, I didn’t stay late,
Before I got home I had 19 dates”
I had no idea what they were saying in that second line for 30 years until the internet came out. When I sang along in my head I always thought they were singing something like, “Oklahoma, how the nights we made.”