A cat named nat

Have you ever seen my cat?,
Big and fat.
White and black,
On his back.
A cat named Nat,
Chasing a rat.
Who was gnawing on a sack,
Trying to find a snack.
Nat lay on a mat,
Ready to pounce on a rat called Pat.
Gave him a wack,
With a tack.
Pat ran into a hat,
Where he found a bat.

The End!!!!!!!!!!!!!!!!!!!!!!!!!!!!