四脚朝天

Explanation: Legs: refers to the limbs. Described as falling on his back. Also be used to lie down and quit. 　　Source: Qing Qian Cai, "said Yue Fei," absolutely not the first call back, the mouth has long been a pecking Mirs have legs in the air, ending up. " 　　Examples: After this sentence, then ~, I heard not a word. (Qing Li Baojia "Bureaucrats" thirty-back)