蚯蚓被吃了，鱼却没钓着

Meaning

Originally Sichuan dialect, spread from a video. Used for cursing. Examples: Not eating? 吃你个锤子 (eat your hammer = eat nothing then). Something broken? 用个锤子 (use a hammer = can't use it, it's broken). Someone pretending to understand? 懂你个锤子 (understand a hammer = you don't understand at all). Versatile cursing that rolls off the tongue.