klutz

This term carries a lighthearted, often self-deprecating tone. While it describes a lack of physical coordination, it is rarely used as a harsh insult; instead, it typically evokes a sense of endearing or comical incompetence. It is primarily used in informal, spoken English.

Because the word originates from Yiddish, it retains a specific cultural flavor of domestic or social awkwardness. It is distinct from terms like "inept," which can refer to a lack of skill in a professional or intellectual capacity, whereas "klutz" is strictly limited to physical clumsiness.