A childhood belief about misheard lyrics

The song I was taught when I was little was:

Mare's eat Oats
and Does eat Oats
and Little Lambs eat ivy,
A kid will eat ivy too
wouldn't you?

This is what I would always sing, thinking the words:

Marsey Dotes and Dosey Dotes
and little lamsey divey
A kiddley divey doo
Wouldn't you?

I could never understand what it meant but never really questioned it, until I became much older and met up with someone who thought the same thing. After talking about it we came to the conclusion "Oh! So those are the words!"