Gack meaning

(often repeated several times) The sound of a cat coughing up a hairball.
interjection
4
2
To expectorate a hairball.
verb
0
2
Also used of similar noises, particularly one made to show disgust or disapproval.
interjection
0
3
(intransitive) To make a 'gack' noise.
verb
0
3
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Origin of gack

  • Apparently from the sound made; believed to have first appeared in comic strips.

    From Wiktionary