conspire with someone in illegal acts
Chinese idiom, Pinyin is t ó ng è Xi ā NGJ ì, which means that bad people collude with each other and do evil together. It comes from the biography of Wu Wang Zhen in historical records.
Analysis of Idioms
Collusion and mutual help
Idiom usage
Only this group of murderers help each other with evil. Southern history · Liang Benji
The origin of Idioms
In the biography of Wu Wang Bi in historical records: "help each other with evil, and stay together with good." In the annals of the Three Kingdoms, Wei Shu and Wudi Ji, it is said that "Ma Chao is suitable for success, and he can help each other with evil."
conspire with someone in illegal acts
filling up the streets and blocking the lanes -- a great multitude of people - tián jiē sāi xiàng