gak
Slang term for the drug Crystal Methanphetamine, also known as: Speed, jab, ice, crank, dope, shard, wigg, sketch rock, tek.
A synthetic drug synthesized in 1887 by a German Chemist (L. Edeleano)
"He smoked so much gak he can't even blink, let alone fall asleep."
"I was so tired earlier this morning, but gak's got my back!"
by Jay Skathe September 15, 2005
gak
Movie crew blanket terminology for any film items or equipment.
The Grips left all their gak on set again.
by Dave Walker June 04, 2005
gak
1) A popular Ardamian word describing certain gooey substances such as slime or bodily fluids except urine and blood.

2) Breathable ~. An Ardamian reference to the chemical Perflubron, prior to the knowledge of its proper name. Also "The Gak".
1) Disgusting, this text book has gak all over it!

2) We can use the Gak to prevent our astronauts from getting crushed by g-forces in acceleration.
by Umshaad Trivates January 10, 2004
Gak
verb: To retch or vomit;throw-up,spew or hurl
noun: The leftovers or by-products of vomiting. Vomit. The regurgitated contents of the stomach.
When I saw the sore on his hand, I was so grossed out I thought I would gak.
by Correct July 18, 2003
Gak
slang for cocaine - from the nauseating effects of doing too much, causing retching after a hefty snort.
man, that gak last night was cut, I was nearly blowing chunks.
by China White April 02, 2003
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.
by The Loadmaster July 09, 2013
Gak
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

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