To create a distraction with your hands on the right side, and discretely pass serious wind from the left side of your buttocks.
"an atrocious smell came from dave's left side while he was fixing his papers on the desk to his right, must have been a left cheek sneak"
by Eric Parma-John September 1, 2007
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When you lift your left cheek and slowly, and quietly pass gas
When Tom was in a meeting he preformed the left cheek sneak and no one knew that he even farted
by OkBoomer69 November 5, 2019
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Letting a quick fart out while lifting your left buttock.
"EW, what's that smell? Mike, did you perform a left cheek sneak in here?"
by Elektra April 27, 2006
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When you're on a first date and trying to present your best self, but the pizza you just ate isn't sitting well with you and you need to let out the beast within. So you subtly lean to the right and silently let out your discomfort, only to immediately sit on it to avoid detection.
"Dude, my date with Tracy didn't go so well last night. She just got up mid-meal and left."

"She must've detected your first date left cheek sneak, huh??"
by stinky-poop-fart August 5, 2022
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