摔掉 (shuāi diào) is a compound verb meaning 'to drop and break' — emphasizing both the accidental falling action (摔) and the resulting loss or destruction (掉). The first character 摔 means 'to fall', 'to trip', or 'to drop with force'; the second, 掉, conveys 'to fall off', 'to drop', or 'to lose'. Together, they describe an unintentional, often careless act that leads to damage — especially of fragile or valuable items like glasses, phones, or dishes. It implies not just dropping, but dropping in a way that causes breakage or irreparable harm.

This verb is commonly used in spoken Mandarin when recounting accidents at home, work, or school. It carries a slight tone of regret or blame (e.g., 'I dropped and broke it'), and is rarely used for intentional destruction. Unlike generic verbs like 打破 (dǎ pò, 'to break') or 掉 (diào, 'to drop'), 摔掉 specifically links cause (a clumsy or sudden fall) with effect (breaking/loss), making it vivid and context-rich.