A sexual act in which two or more people coat their genitals in Cinnamon powder and slam them into the rectum of the other members in an attempt to both irritate and stimulate the "Old-Dirt-Road".
"Hey, what happened to you last night at Jane's house?"
"Yeah, Dave and I gave her the Cinnamon Partysledge!"
"Yeah, Dave and I gave her the Cinnamon Partysledge!"
by Perky NippyCake December 1, 2017
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