I knew there would be a mondegreen thread here! Actually read through the whole thing to make sure these aren't in it already. I laughed a lot.

As a child, I sang the first line of "The Friendly Beasts" as "Jesus our brother, kind of good . . ."

For years, I was vaguely wondering who Arthur Penn was, in the song "Creeping Jane" - "She never saw a mare nor a a gelding in her life that she valued at the worth of Arthur Penn." Then one day it dawned on me: half a pin!

I recently looked at the lyric sheet that came with Richard Thompson's "Henry the Human Fly", and discovered that it says "It's bitter the NEED of the poor ditching boy." I've been singing MEAD for over three-quarters of my life. I like my version better.