"Gat hang of" means to understand or master a skill or task. The antonyms for this phrase can be "struggling with," "floundering," "confused about," or "clueless." These antonyms indicate a lack of understanding or ability to grasp a particular concept or skill. Synonyms for "gat hang of" include "get the hang of," "grasp," "comprehend," and "master." It is vital to be aware of the antonyms of an expression to convey clear meanings and avoid confusion. Therefore, if one is not able to gat hang of a concept, they might be struggling with it and need further assistance or guidance.