stuck knuckle

The sexual act of fingering someone so tight, your knuckle gets stuck.

"Dude, did you see that chick? She's so hot!"

"Yeah, Tommy stuck knuckled her last weekend."

by BenjiBonz October 12, 2013

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Knuckle Theory

A theory used by measuring the number of days in a month. If your index finger touches your knuckle of your hands, the month has 31 days, while if you touch the skin of your fist, it has 30 (with the exception of February).

Scott: Dude, how many days are there in August?

Dave: 31.

Scott: Isn't it 30?

Dave: Use the Knuckle Theory.

by OpeN333 October 22, 2013

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Man's Knuckle

When a man shows his knuckles to other guys, he doesn't show them like a girl-he puts them into a weird fist like a real man does!

He shiwed everyone his Man's Knuckle.

by pa2edophile January 29, 2012

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Blue Knuckle

A condition often aquired at the end of the NCAA Basketball season during Conference Championship Week and the first few rounds of the NCAA Basketball Championship--affectionally known as March Madness. It results from changing the channel every few seconds trying desperately to catch every second of every game, but in the end never fully achieving the satisfaction and release from the closure of seeing every play of every game.

Caller: "Dude, have you been watching March Madness hoops?"

Friend: "Hell yes! The only thing is, I've got to put a bag of frozen peas on my knuckles in between games. Having four games on at once is killing me, I've got a serious case of Blue Knuckle...it's a damn good thing I've got two hands!!!

by Guerre July 31, 2012

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