The version I heard in the 60’s in East Tennessee was very similar to the long versions posted here. A couple were different.

“Down from the mountain across Shag Ass Creek came a half breed bastard called Piss Pot Pete. He had 18 pounds of swinging meat. When he laid it on O’Leary’s bar I swear it stretched from thar to thar.”

And when the contest started:

“He fucked her sitting he fucked her lying, if she’d had wings he’d a fucked her flying”

And the ending:

“Some years later Pete caught the cough—died in the corner jerking off.”