(idiom) lit. helping the tyrant [[商纣王|商紂王|shang1 zhou4 wang2]] in his oppression; fig. to take the side of an evildoer or help a bad person do bad things

The historical event where [[周武王|周武王|zhou1 wu3 wang2]] overthrew the tyrant [[商纣王|商紂王|shang1 zhou4 wang2]] of the Shang dynasty

King Zhou of Shang (11th century BC), notorious as a cruel tyrant

The last rulers of the Xia and Shang dynasties, traditionally regarded as cruel tyrants; often used collectively to refer to any ruthless or tyrannical ruler

vulgar and unrefined; rustic and crude in behavior

Zhou Xin (c. 11th century BC), the last king of the Shang dynasty