From Doc Watson listed at http://205.177.6.250/article.htm

Shoulder up your gun and whistle up your dog (repeat)
Off to the woods for to catch a groundhog.
Oh groundhog.

Run here Sally with a ten foot pole (repeat)
To twist this whistle pig out of his hole.

Here comes Sally with a snicker and a grin (repeat)
The groundhog gravy all over her chin.

Look at them fellers, they're a-goin' wild (repeat)
Eat that hog before he's cooked or biled.

I dug down, but I didn't dig deep (repeat)
There laid a whistle pig fast asleep.

Now the meat's in the cupboard and the butter's in the churn (repeat)
If that ain't groundhog I'll be durned.

Well you eat the meat and save the hide (repeat)
Make the best shoestring that ever was tied.

Look at them fellers, they're about to fall (repeat)
Eat till their britches won't button at all.

Little piece of cornbread a-layin' on the shelf (repeat)
If you want any more you can sing it yourself.