My favorite one was from when I was a bit older and started listening to my brothers' rock and roll stuff. Bruce Springsteen's "Blinded by the Light" was just chock full of stuff I didn't understand, but what got me (and apparently a whole bunch of people) was the line "cut loose like a deuce," which I (and countless others) heard as "wrapped up like a douche." And of course, I had no idea what that meant. So I can only imagine the pleasure everyone who heard me sing got from that one. My only consolation now is that I clearly wasn't the only one.
(And just for some more fun, run down this rabbit hole: Am I Right - Misheard Song Lyrics)
So it shouldn't be any surprise to me when I come across those auditory errors when I proof manuscripts. Some common ones include:
for intensive purposes - should be for all intents and purposes
phase - should be faze
hone in - should be home in
you've got another thing coming - should be you've got another think coming **
**Part of the confusion on this one rests on the shoulders of Judas Priest (as if they didn't get enough grief in 1989 when they were named defendants in a lawsuit over subliminal messages in their albums that caused two young men to commit suicide). The song "You've Got Another Thing Coming" was a big hit in 1982 and from then on, we can blame them for the auditory error and the misuse of the phrase as it was intended.
But I ran across this really cool video that describes how what you see can affect what you hear, and what you hear can change your perceived vision. Check it out: