Rubbing one's penis vigorously back and forth in an ass crack, while not actually inserting it in the anus. Also known as the asstric bypass.
She was on her period and her butthole smelled, so I just did the old Appalachian Mundungus.
by Thomas Frick March 25, 2008
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A lesser known letter in the English alphabet, some refer to it as the 27th letter. It is primarily derived from southern mountainous regions in the U.S. It can replace a standard regular "r" but it is usually added to words that are not typically spelled with an "r", thus causing words containing the Appalachian "R" to have a certain mountainous twang when pronounced.
Jethro: Ma I'm cornfused. I's a been lookin' fer Pa and can't find him no where's I ain't got no idear where he is.

Ma: Jethro didja check the warsh room? He might be on the torlet.

Jethro: I hope I finds him soon, I needs to show him my new measurin' stick its got these here new fangled centermeters on it.

Appalachian "R" is in cornfused; idear; warsh; torlet; centermeters
by Its 2pm somewhere April 4, 2018
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A guy syringes alcohol into his urethra, does anal, and urinates it into another persons’s rectum
Andrew did an appalachian funnel to Brynn and she got so fucked up.
by Charles Crawthenhammer October 27, 2018
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When one person is defecating on a toilet. And then person #2 sits on their thighs, and simultaneously shits in the same toilet.
Person #1: "I got dibs on the toilet."
Person #2: "Naw bro... That's my toilet and I can't hold it anymore."
Person #1: "Me either bro, so only choice is to lap up and hit an Appalachian Mudslide."
Person #2:"Fine!! But dont tell anyone about this bro! Dibs on bottom."
by d!ckLuvg0d December 15, 2020
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The act of defacating on your partner while executing a reverse piledriver.
"My new shirt was ruined when Sean gave me an appalachian mudslide:
by ill mitch February 2, 2006
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Where you shave a girl's snatch so she'll think you're gonna munch on it… only to find out that she's flipped on her stomach, put in the full nelson and ass fucked like Elisabeth Shue in Leaving Las Vegas.
Damn, she must have rode the Appalachian Applecart last night... she's got razor burn and she can't shit straight.
by Swearengin August 28, 2012
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Where one says one is going when one is going to cheat on one's spouse.
Where's Mark going this weekend?

Appalachian Trail. At least that's what he told his wife.
by BeeDee04 June 30, 2009
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