Hush%20Baby%20Narwal%2C%20don’t%20say%20a%20word%2C%20Mama%20doesn’t%20think%20your%20horn’s%20absurd.%20And%20if%20anyone%20else%20dares%20to%20says%20so%2C%20Mama’s%20gonna%20stick%20them%20on%20an%20ice%20floe.%20And%20if%20that%20floe%20doesn’t%20float%20away%2C%20Mama’s%20gonna%20make%20them%20into%20a%20shish%20kebab.%20And%20if%20that%20couplet%20doesn’t%20rhyme%2C%20Mama’s%20still%20gonna%20make%20them%20into%20a%20shish%20kebab.