Pretending to shotgun a Coors Light with your friends and blowing into the beer can while pointing the can opening towards your intended target. Your friend should be covered in an ice cold shower of beer.
Instead of shotgunning the beer, he turned the beer towards his friend and gave him a rocky mountain shower.
by He him chichi May 22, 2022
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The act of lying on your back while someone hovers over you, spreading their cheeks as a drink is poured on their back. The liquid flows between the ass cheeks into your eager mouth.
Christoph wanted me to try his energy drink, so we Rocky Mountain River Trailed it!
by hotspicyboner February 1, 2023
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When Partner 1 force feeds Partner 2 enough moonshine for them to pass out, then Partner 1 inserts Partner 2’s smart phone into Partner 2’s ass while recording. The footage is then uploaded to Partner 2’s social media.
“Yeah Derek gave me a Rocky Mountain Colonoscopy last night and the footage gave my grandmother a stroke. Hell of a family reunion though.”
by ShaftCraft43 March 4, 2021
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A rocky mountain is a are and solid shit, sometimes containing peanuts found an a sleeping victims chest. The "sunrise" is often added to the end of the phrase when the victims mountains are also urinated on.

Not to be confused with a Snowy Rocky Mountain, which is a shit with powdered sugar or semen on it.
Dude, Darryl gave us all a Rocky Mountain Sunrise. What a sick bastard.
by SouthParkSkiInstructor March 31, 2012
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When you farmer your nose into her lady parts for lube
There was no KY jelly available but Rocky Mountain snot box and we were good to go.
by Mbop January 15, 2022
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A ten acre “Ranchette” situated on a windswept rock outcropping,
where there is nothing to do but look out the window or at the other “inmates”
while waiting for the weekly “supply shuttle” from town.
They sold the house in Seattle
and bought a "Rocky Mountain Alcatraz" in Montana.
by MTripod February 19, 2008
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