I learned this song in grade school in St. Louis (around 1984), from Mrs. Gagnepain. We all loved it. My sister and I still sing it.
One day in college, I got the song in my head and started asking people if they knew it. As I was singing it for some dormmates, a guy walking past in the hallway chimed in "...and his little solar plexus, meow meow meow" and we both starting cracking up laughing.
That guy and I became friends after that. Last year he was the best man in my wedding.
And to think, without Don Gato we may never have met...