If a word rhymes, it's pretty much the same thing

Clare was reading a story to her class about Hanukkah on the first day of the holiday.  She was explaining to the students about the popular jewish toy - the dreidel.  "I've heard of them before," Herman shouted out, "In that song that makes babies fall asleep."  "Which song are you talking about?" Clare asked him, puzzled. His reply: "You know the one. 'Rock-a-bye baby on the tree tops...when the bough breaks the dreidel will fall..."