We don't have any synonyms for gack yet.
Think gack belongs in the thesaurus? Recommend it and we'll take a look.
Definition of gack:
(v) :
(intransitive) To vomit, throw up.
(v) :
(intransitive) To make a sharp, sudden sound in one's throat, such as before vomiting or while coughing, gagging, etc.
(v) :
To do something that causes a sharp, sudden sound in one's throat.
(v) :
(intransitive) To choke (be unable to breathe because of obstruction of the windpipe)
(v) :
(intransitive) To choke (experience tightness in one's throat as a result of strong emotion)
(v) :
(transitive) To cough something up.