gak

American  

[gak] / gæk /

Also gack

noun

Slang.

1. any of various addictive narcotics, especially cocaine or crystal meth.

   It was pretty disheartening to find out he’s back on the gak, and this time there’s really no one left in his corner.

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gak British  

/ gæk /

noun

1. slang cocaine

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Etymology

Origin of gak

First recorded in 1995–2000; of obscure origin

Example Sentences

If you are lucky enough that this cyanobacteria, or kale-colored gak, has not yet infected your local lakes, bays, rivers or creeks — well, it probably will be soon.

From Salon • Aug. 16, 2025

One version “GFHG, SDGM” uses English letters from the transliterated phrase “gwong fuk heung gong, si doi gak ming”.

From The Guardian • Jul. 4, 2020

Or, as Slattery put it: "We make gak, which is a total slang term that basically means digital stuff going on" — i.e. digital blueprints, bank records, criminal profiles, government agency mainframes, client dossiers.

From Chicago Tribune • Dec. 21, 2010

Crow gâgak kâka J. and S. gayak; Bat. gak; Mak. kala; D. kak.

From A Manual of the Malay language With an Introductory Sketch of the Sanskrit Element in Malay by Maxwell, William Edward, Sir

To-day Nongum. kajigack Anootch kee je gak Doo jay nee ay Deerd sin o gay.

From Notes of a Twenty-Five Years' Service in the Hudson's Bay Territory Volume II. by M'lean, John