Having sex with livestock during a barn dance or similar country gathering or celebration. Typically done under the influence of alcohol and/or drugs. The act must be witnessed by fellow party goers, who may cheer on the offender due to also being under the influence.
Gerald: Hey, Bill, where did Mitch go during last night's barndance?
Bill: Oh he done got shitfaced on moonshine and commited a West Virginian Party Foul
Gerald: A wha?
Bill: Dumbass fucked a sheep in front of everyone, and the damndest thing about it, the sheep had panties on.
Gerald: Sumbitch fucked my Gloria!?
by wisemanoncesaid August 8, 2018
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