The term **馊主意** is a vivid Chinese metaphor formed by combining **馊**, meaning "spoiled" or "sour" (as in rotten food), with **主意**, meaning "idea" or "plan." It literally translates to a "spoiled idea," drawing a direct analogy to food that has gone bad—something that is not only unappetizing and unpleasant but also potentially harmful or nauseating if consumed. Thus, figuratively, it describes a bad, foolish, or ill-advised suggestion that is likely to lead to negative consequences, effectively capturing the sense that the idea is both distasteful and morally or practically "off." This formation exemplifies a common pattern in Chinese where sensory or concrete adjectives are applied to abstract concepts to create expressive compound words.