Top Definition
A weapon consisting of heavy brass (the cheap plastic ebay ones dont count) that have holes for you to put your fingers through, in order to get a grip and form a fist. Once this is done, you can use the weight and hardness of the brass to injure soft flesh. Pretty effective at ruining people's day, but if you dont know how to fight you may get it taken off your own hands and then used against you. Imagine that.
You try to get slick, you bust a little chuckle, you're gonna get smacked with my gold finger kuckles.
by Leandro October 30, 2004
Short for "brown ass knuckles".
After one has taken a shit and proceeds to wrap their fist in toilet paper, then sticks it up their ass.
Tim: I gave my wife the brass knuckle last night
John: Sweet man
by Chadvayne December 22, 2014
Also known as Brass knuckles, knuckle dusters, knuckles (there are different types and this is a broad reference) or Brass Monkeys.

Knuckles can be made out of Metal or plastics.

Real Brass knuckles can deal an astonishing amount of damage is used correctly. They are harder to find and are very costly.

Second rate metal knuckles are the most common and are often called "paper weights" or "belt buckles" to avoid legal issues.

Plastic knuckles are the least affective but can be used to get past airport security.

Knuckles are illegal in several countries, especially the United States (carrying one in public results in an a or b felony and a large fine. That's jail time of 6 months to one year)

They are illegal because knuckles, alongside usually being made of metal, cause deep tissue damage and can brutally tear up someone's face or other area repeatedly struck.

They do so much damage because they provide very good support to your fist and in turn, your fist provides a very good punch. You could just as easily do the same damage with a handfull of pencils. The metal does tend to hurt on top of that.

Knuckles have been used for years. They have been seen in torture methods, war weapons, gangs, and sometimes self defense. Sometimes they are implemented into the handle of a knife resulting in a Trench Knife. They can also be given spikes, blades, studs or other harmful accessories.
Trench knives, paper weights, Brass Knuckles, belt buckles, brass monkeys
by Jackx429 March 23, 2014
To "brass knuckle" someone is to fist them, either vaginally or anally, whilst wearing many rings on the hand used to perform the act.

It is suprisingly common in some rather extreme underground uk bdsm clubs, many of which reside in Soho, London.

"Brass Knuckling" is a chain of people all performing a Brass Knuckle upon one another.

A double brass knuckle is referred to as "getting brassed"
1.) I went to the club the other night and some guy was getting brass knuckled in the corner.

2.) - "My vagina hurts"

- "Probably because you got brass knuckled last night."

3.) "Her vagina is very wide, I bet she could take my brass knuckle"
by TheKnuckler July 07, 2012
when you're getting a handjob and you cum streams down their knuckles.
"I told her, 'Either lick up or go wash off those Brass Knuckles, please'"
by Todd McTodd October 22, 2009
1)fuck a girl
2)pull out
3)jerk it
4)let your cum drip down your knuckles
5)punch the girl in the face
girlfriends brother talking to husband-"yo nigga! whys my sisters face all bruised and bloody???"

husband-"oh that...yeah i gave her the brass knuckles last night."
by thebigblackjudge August 19, 2010
A weapon in first, third and second-type shooter games that blows entire scrotum-fulls of nutsacks.
Brass knuckles blow nutsacks. I don't even know why they put them in GTA. I want the chronoscepter, nigga.
by sux0r February 03, 2008
When, while having sex with a girl, you cum onto your knuckles and or front of your fingers and then slug that bitch in the face.
"I gave that bitch the brass knuckles"
by YenDollarEuro March 17, 2008
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