Top Definition
its the acronym for " Good to know", it can be used in terms of sarcasm or actuality
Valencia: your face looks odd
ayon kay Mrz.Harper13 ika-11 ng Hunyo, 2010
14 more definitions
Short for "Get the Keg".

Used when someone is about to do something so stupid that you don't even want to remember.
Retard: Dude, I'm gunna light my car on fire!!
McRetard: Ahh god gtk.
ayon kay De Vil ika-23 ng Agosto, 2009
good to know
1: i farted

ayon kay lovadkfs ika-29 ng Hunyo, 2010
Good to know. An easy, quick way to say a common phrase; often over email or text messaging. Similar to FYI, BTW, etc.
"I'll be in town in 2 weeks!" "GTK! Hit me up when you're around."
ayon kay efficiencyqueen ika-18 ng Disyembre, 2013
good to know
thats gtk
ayon kay thebobsarereal ika-23 ng Nobyembre, 2014
good to know

--said when someone say something that is good to know
ayon kay sexysimba ika-11 ng Agosto, 2011
the acronyme for: get to know
Person 1: i don't know how awesome she is

Person 2: well gtk
ayon kay Rocket_Queen ika-19 ng Pebrero, 2015

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