Give free rein to Party nature
来自China Digital Space
dǎngxìng dàfā 党性大发
To act in the interest of the Chinese Communist Party, implying unethical, selfish behavior. Play on the idiom "give free rein to one's animal nature" (shòuxìng dàfā 兽性大发).
The Party nature of a government official shines through in forced demolition, child molestation, and other public cruelties. Anyone can express their Party nature by writing paeans to the CCP or breaking into revolutionary song:
Xilanxiaojing (@夕蓝小铮): Who knows if that Party-natured Ph.D. boy upstairs is going to sing "The East is Red" and "Nanniwan" tonight... The thing is, he sings out of tune
大晚上的楼上不知道哪个党性大发的男博士在大唱东方红和南泥湾……关键是还跑调 (January 18, 2014) [Chinese]