He couldn't pour piss outen a boot if it had d'rections wrote down on the heel!

He's so common, his piss don't foam.

Busy'rn a man with two rattlesnakes an one hole t'put'em in!

Whattya cawl a redneck with a two-digit Ah Q? Gifted!

For a wonderful collection of such animadversions, be sure to check out a book compiled by H. Allen Smith entitled "Rude Jokes" and another, editor unknown, called "Pissin in the Snow: A Collection of Ozark Humor"