Mairzy Doats

Mairzy Doats(posted for the A to Z Challenge)
M is for Mairzy Doats.
This week, I’m packing for the Midwest Horse Fair (which also starts with M), and the process is keeping me rather busy. As a result, today’s post is a mere musical reminder that may mystify many.
Do you remember this old nonsense tune from the 1940s?
 .  .
Is it nonsense? Read the lyrics, and make up your own mind.
Oh, mairzy