A word used in central Scotland (Perth and Kinross, Fife, Stirlingshire) to describe an unsociable and annoying person. Synonymous with 'dick' or 'twat'.
Person A - "You know that John guy?"
Person B - "Aw yeah he's an actual gak, he needs hit."
by Your Maw's Maw December 22, 2012
The Bronie's kryptonite.
by BronyPony November 30, 2012
A word used, when no other explanation of how one feels can be explained in certain situations.
Jessica: "Don't even worry about it."
Me : "gak"
by Snagless March 23, 2012
Used to describe a person who is either nerdy, uncool, stupid, up themself or generally lame.
I have met that bloke, he is such a GAK.

They are a bunch of GAKS.
by Blubberguts May 21, 2010
Similar to the slang word "cum" in that it functions as both a verb and a noun by describing both ejaculation and semen, respectively.

As a noun, it is inspired by the archaic Nickelodeon product, Gak. Thus its use is preferable if the load of semen is of a thicker consistency. On the other hand, if the load is of a watery, drippy consistency, then "squirt" is probably a better word.

As a verb, "gak" is obscure, which makes it handy for formal situations in which "bust a nut, cum, cream my jeans, blow my load," etc. would be considered socially unacceptable.

Rhymes with "clack," which is a slang word for carnal, aggressive, "balls-slapping-ass" sex. Thus, to "clack 'n gak" would be to suggest a "down and dirty" coital session in which the male only concerns himself with his own pleasure and ultimately, his ejaculation.
"I gakked in her hair once, and since I felt so badly I bought her some Gak."

"Oh God...I'm about to gak!"

"There's still gak all over your earlobe."

"A quick clack n' gak, and then I was out of there."
by jefeljefe January 04, 2010
vaginal mucus
the smell of gak off yer one!

she emits a distinct aroma of cervical discharge..
by scabbard=mucus December 07, 2009
A person that hates complainers.
I was bitching, then that Gaks told me to shut up.
by The One You Love to Hate July 10, 2009

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