We're into butts now.

Mary had a butt butt butt, butt butt butt, butt butt butt!
Mary had a butt butt butt, its fleece was white as butt.

Everywhere that Mary butt, Mary butt, Mary butt!
Everywhere that Mary butt, the lamb was sure to butt.

It followed her to school one butt, school one butt, school one butt!
It followed her to school one butt, which was against the rules.

It made the children laugh and butt, laugh and butt, laugh and butt!
It made the children laugh and butt, to see a lamb at butt.