G.K 

G.K stands for Gamma Killer. This can only be one Boy in the friend that gets all the gammas which mean girl or girlfriend

My friend is 'G.K' cuz he gets all the girls.

G.K by Ur_dard November 20, 2023

G.K.G. 

What is not referred to as a gang, but a "brotherhood" that makes up their own words and does drugs. It was started by some white and mexican stoners in the Waterloo/Cedar Falls area of Iowa. It stands for "George Keetness Garbage."

"Whoa, dude, look at that group of G.K.G.'s beating up that little black kid!"

"Yeah, I know man, but it's okay though because I just scored some good shit from those bastards!"

G.K.G. by SBOY467 October 18, 2008

G-K-ing it 

Trying to act gangster, and failing. Employed by many stupid white girls who want to get laid by the basketball team. Consists of wearing FUBU, chains and employing ebonics in everyday conversation.

"What up ho?"
"Dude, stop G-K-ing it, you look like an idiot!"

G-K-ing it by Seanius April 25, 2006

G.K.O. 

"Guitar Knock(ed)-Out"

Used to describe any action or event that leads to the overuse of a guitar, resulting in soreness in the arms/fingers and mental/physical incapacitation.

When he got his new amp, he got G.K.O.'ed because he practiced too much.

I needed to learn so many new songs for my debut, I was G.K.O.'ed.

G.K.O. by Guit' Muasta March 16, 2008

G.K.O. 

GKO is an abbreviation of Good Kind Of

He's the G.K.O. crazy

G.K.O. by synchrogenized September 24, 2016

N.G.K.O 

Acronym for Nigger Got Knocked Out !

your watching a sport when you shout N.G.K.O

N.G.K.O by Ishi D May 7, 2011

A.G.K. 

Short for Angry German Kid

Life being 2: I just watched the A.G.K. Counter Strike parody

Life being 2: Awesome!

A.G.K. by That guy! look! January 1, 2008