Five Knuckle Plug

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.

by Eaton Holgoode March 29, 2017

ten-knuckle buckle

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!

by tamara p.s. October 28, 2007

German Knuckle Cake

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.

by Pox March 23, 2006

Two Knuckle Puppet

The act performed when a male or female inconspicuously inserts their hand into clothing of a female while in a social setting. A finger is then inserted into her vagina and is manipulated in way that will cause stimulation. The puppet master continues the finger movement as the puppet continues to interact with others in the public setting. The period of time the act is performed is often referred to as a "two knuckle puppet show".

The look of embarrassment came across Jill's face as the dog pulled down the jacket she had draped across her lap, exposing Jack's hand pushed deeply into Jill's Pants, causing their two knuckle puppet show to come to an end.

by Snatch(Beer30) May 3, 2011

belgian knuckle cake

Fisting a blue waffle with favorite topping then licking it off

Damn Girl! I would totally give you a Belgian knuckle cake

by Stemack February 1, 2018

the 5 knuckle shuffle

A slang word for masterbating

Mom: where is timmy, he has been in his room for a long time
Brother: he's doing the 5 knuckle shuffle

by BlazeBeing May 14, 2015

Thumb Knuckle

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!"

by Super Jenius October 13, 2008