Achieving a full hand fisting of your partner's anus of or vagina. Requires patience and lots of lube and very pleasurable gaping.
It took over an hour but I finally did the Five Knuckle Plug on her ass. That baby gaped for 10 minutes before it snapped back shut.
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A slang term used to describe the act of double fisting.
I'm still sore from last night. your mom pulled out the ten-knuckle buckle on my ass!
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German Knuckle Cake (noun) A slang term for fisting someone is the ass.
Her asshole was so big I could have fit a German knuckle cake in there.
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Port Huron, Michigan
Located around the Knuckle of Michigan
Scotty- "Hey, im headed up to Thumb Knuckle for the weekend"
Tommy- "I Have family that lives there!"
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The combined action of yelling "KNUCKLE, KNUCKLE, KNUCKLE" at the top of your lungs, while jumping all around and throwing your hands in the air with your fists clenched and an angry, rabid look in your eyes.
Dude wouldn't move over on the single track so I had to pass him and then stop in the middle of the trail to do the knuckle dance.
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A male version of the infamous camel toe, esp. when flaccid.
"Holy cow! That is the biggest slack knuckle I've ever seen!"
"That guys pants are so tight his slack knuckle is poking out like crazy."
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Fisting a blue waffle with favorite topping then licking it off
Damn Girl! I would totally give you a Belgian knuckle cake