Titu Igi, I Finally Figured it Out!!

Once, several weeks ago, Gedalya was sitting and playing with his musical book about Jewish Holidays. I smelled something and hauled him off to change his diaper.
As I was changing him, I was playfully scolding him, saying, "Ay, ay, ay, what did you do Gedalya? What did you do?"
So he answered, "Titu igi."
Huh?
After I changed him, I asked him to show me what is titu igi. He took me to his musical book.
We were all trying to figure out what "titu igi" is. Our guesses included the musical book, music in general, books in general, one word meaning music and another meaning book...

Recently I heard Gedalya singing, "Titu, titu, titu, ....igi" to a familiar tune.
I asked Zusha what Gedalya is singing.
He said, "I have a little dreidel, I made it out of clay."

!!!!!!!!