Gammy is a term used to describe something or someone that is not quite right or functioning properly. Some synonyms for gammy include defective, faulty, wonky, limp, unstable, wobbly, crooked, and shaky. These words all suggest that something is not working correctly or is not fully functional. Other synonyms could include the words impaired, damaged, imperfect, broken, or unsteady. Each of these words conveys a similar meaning to gammy, but adds a slightly different nuance. It's important to choose the appropriate synonym depending on the context in which it is being used.