Short for Gumma Killer, used as another word for pimp; someone who gets alot of women.
James: "Justin is with a couple of girls tonight"
Troy: "Really? He's such a GK!"
by Vendawish February 8, 2010
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An online gaming clan that originated in 1998 in dark dusty basements in the Pacific Northwest (USA). The clan originally played Rainbow Six, but has since moved on to Battlefield 1942 and the subsequent releases and Mods. Many perpetrate to be GK, in fact many have stolen the name in hopes of contracting some of the skills possessed by the founding father. A clan in Europe has even made a website calling themselves GK. There is only one true GK!

The original founding fathers included:
GK_SWooP, GK_joneZr, GK_Slick, GK_Nooch, GK_Money$hot, and GK_Wheelsofsteel.

The meaning of GK is a secret held by the clan members themselves.

GK's have sworn oath to kill all smacktards.

"Bring it on Bitches" ~ GK_Money$hot
GK_Money$hot (M16): Smacktard
by Money$hot July 23, 2004
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A “GK” is short form of ‘Great King
You are one of the most renowned GK…
by Akii_1 March 20, 2023
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Short for Game Killer. A similar, more masculine form of co*k-block, a GK waits until things are going well and proceeds to irreversibly destroy a friend's ability to get ass. This is usually achieved by trying so hard that it makes everyone uncomfortable.
I was making serious headway with a Bulgarian (I think) skinny blonde with a ginormous rack when GK suddenly appears in my peripheral. After thirty seconds awkward conversation and bad jokes, the blonde leaves.
by ssirjg238 April 19, 2005
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Gk is the meaning of Ginger Kid. In this case we call GK only to those ginger kids that surf the net and like to troll.
Hey, be careful with that GK, avoid him if you can.
by TheFiera November 6, 2011
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a gay kunt (cunt)
somebody that is gay but still manage to be a cunt about it
numeroues in amounts all over the world but especially common in places like VICTORA, AUSTRALIA
Mr keith keller of golden grove high and various other teacehrs, walkom, mcgee and so on are all GK's
by Hell Beers August 11, 2009
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Short term for Ghetto Krink. Homemade ink/paint mostly used for graffiti writers. Used in Kiwi Mops, Bingo Dabbers, Window Writers etc. To make, its 2/3 rustoleum oil based paint, 1/3 paint thinner. More thinner more drips.
Yo i just tagged that electrical box with m mop ad some GK. Its mad drippy and opaque!
by graffguy1 September 30, 2007
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