Bare Knuckle Stinker 

A person who is extremely unattractive, and would not touch with your "bare knuckles".

Jack - "Omg, look at the girl, she's ugly as"
Joe - "Yeah man, she's a bare knuckle stinker..."

Bare Knuckle Stinker by lvsickkkkk October 15, 2011

Junk Knuckle 

The point at which a penis bends.

Dude, his wang is so crooked it has a junk knuckle

Junk Knuckle by Whcgonzo October 28, 2011

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!!!

Blue Knuckle by Guerre July 31, 2012

Fuck Knuckle 

The second knuckle of any digit when inserted into an orifice in a sexual manner.

I was fingdipin' this girl to the fuck knuckle after the baseball game the other day.

Fuck Knuckle by elcapitandeganja October 18, 2013

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."

stuck knuckle by BenjiBonz October 12, 2013

three knuckle dunkle 

When you are at a third rate strip club and the stripper let's you go in three knuckles deep.

I was at Twin Peaks and Chastity let me do the three knuckle dunkle.

three knuckle dunkle by anjbabs March 19, 2014

Flutter Knuckle

When you reach down to grab something off cement and you drag your knuckles on the ground creating a jagged scrape called a "flutter"

Scott: "Oh look a penny!"

David: "Grab it"

Scott: "Fuck! I got a flutter knuckle."

Flutter Knuckle by NgerBlaster May 5, 2014