Mitgard Serpent

It was the Mitgard Serpient, He grabbed the Earth and away he went; (The Mitgard Serpent was a Cat With a dozen legs, or about like that). He swallowed his tail with all his might, Then spit on his claws and held on tight; And so the world went round all right. And 'twas sometimes day and sometimes night, And 'twas always dark when it wasn't light.