Gak 

Gone Away Knocked. The point you reach when you are so drunk yuu are no longer sociable or aware of whats going on. Super smashed on drugs or alcohol, and you probally wont remember the nights events the next morning. You are Gak'd.

Yu drink way to much, and do some drugs, crossfadded to the max you are Gak. You are gone away knocked past the point of no return.!

Gak by LazieKay April 15, 2012

gak 

pure and utter shit rubbish talk from people where i live

Go way lad your talking pure gak

gak by Diarmaid Ryan March 14, 2007

Gak 

Used as a verb, this term describes the swallowing of something unpleasant or objectionable.

She gave really great head, but when I came, she had a hard time gakking down my cum load. It really surprised me.

Gak by The Loadmaster August 16, 2013

gak 

Substance found under a food producing machine.

There is Gak under the mayo pump.

gak by joe cool May 13, 2005

gak 

A noun used to describe the smell that is produced by a person that has terrible B.O., mostly arising from their ass crack, that is bad enough to make you gag.
Also can be used as a verb in the same way.

Phew, that guy has gak.
Your B.O. makes me gak.

gak by Beckerson January 1, 2008

Gak 

To spurt, shoot and or secret semen from the penis. As made popular by Nickleodeon's show Double Dare.

Oh, look at that, you got gak all over your mom. Good job!

Gak by JayMoore November 22, 2010

gak 

(v.) to improvise without regard to or in ignorance of an established procedure or format.

I wasn't sure what the boss wanted, so I needed to gak some results.

gak by Link93 June 11, 2006