As verbs the difference between gack and mack
is that gack is to make a 'gack' noise while mack is (slang) to act as pimp; to pander.
As an interjection gack
is (often|repeated several times) the sound of a cat coughing up a hairball.
As a noun mack is
(slang) an individual skilled in the art of seduction using verbal skills.
gack
English
Interjection
(
en interjection)
(often, repeated several times) The sound of a cat coughing up a hairball.
Also used of similar noises, particularly one made to show disgust or disapproval.
Verb
(
en verb)
To make a 'gack' noise.
To expectorate a hairball.
mack
English
Related terms
* Mac