Something that was done by ones self, not influenced by any outside party, that was fucking crap. Therefore, being an insult against ones self.
Matt: What kind of fucking shitty job did you do there you fuckin' douche bag?

Chris: Yeah man, that was fuckin' gak!
by Steeman April 30, 2005
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Anything that’s really fucking dope.
Person One: Have you listened to Janelle Monae’s album Dirty Computer?

Person Two: Hell yeah it’s pure gak!
by spicyvegan March 17, 2019
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A sticker usually slapped on surfaces around NYC as a tag. It is rumored to resemble the logo of a streetwear brand discontinued in 2002.
Hey! That’s a Kest Gak sticker on a train!”
by Unusual987 December 5, 2020
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The area where cocaine is taken; usually comprising a cd case, a credit or video store card, a rolled note (or cut down drinking straw), a baggie of coke and a determined and serious minded soul chopping lines, preparing to work the night shift.
Them: Nah, I didn't make it to the club, I went around Gareth's and got chained to the gak factory..

Me: Nice (shudder)
by footfarmer September 23, 2005
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Methanphetamine, speed, angel dust, crank, you know...that tweak shit.
"He's hooked on the geeter gak"
by Crakrjak November 16, 2003
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one of the smartest most phenomenal people ive ever met. he will go so far in life and will marry me when im twenty six. he is russian and really likes cars (like me!). he is the color dark green and he is also an otter but lately ive been thinking hes kind of more like a platypus because theyre like ducks trapped in a beaver body and idk but my favorite thing about him is that i dont have to dumb myself down. love the guy. love greg a bit more. but simon is the smartest boy i know.
simon gak speaks russian??? not as well as me
by mindyabusiiness July 16, 2023
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