Top Definition
Literally meaning "Lonliness" in Klingon, also used as a word of frustration in english. "Gahactar" is used when something goes wrong, or something unlucky happens. "Gah!" is the shortened version.
I got an F on my essay...GAHACTAR!
by Theartistformallyknownas Fudd October 10, 2009
5 Words related to Gahactar

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