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 23, 2012
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VERB Take without permission, usually from someone else's blog or live journal.
John liked the new quiz on Maria's blog so much he decided to gak it.
by jes December 3, 2003
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the action when you make a face of disgust when the drips from snorting cocaine starts to go down your throat. if you dont clench your throat, and you let it down, you get the nastiest feeling in the world
person 1- snort!!!!!!!
(about 2 minutes later)
person 1- ewww gak! yuck!
person 2- yup, gotta love those drips
by danman12791 December 15, 2007
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hippy term (possibly northern) for sweets, chocolate crisps etc.
Brett: I'm going to the shop, d'ya want anything?

Matt: yeah, bring me back some gak...
by smilash July 1, 2009
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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
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Former President William J. Clinton left gak on Monica Lewinsky's dress.
by Ric August 6, 2004
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Similar to a circus "geek", a "gak" is a circus performer who sucks farts out of chickens.
It was amazing how the circus gak was able to withdraw flatulence from the hens and roosters.
by J.J.W. January 25, 2005
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