1. lit. secretly crossing the Wei River 渭河 (WèiHé) at Chencang (idiom, refers to a stratagem used by Liu Bang 刘邦 (LiúBāng) in 206 BC against Xiang Yu 项羽 (XiàngYǔ) of Chu)

2. fig. to feign one thing while doing another

3. to cheat under cover of a diversion