牛鬼蛇神 niú guǐ shé shén

niú guǐ shé shén set phrase ox ghost and snake spirit; bad characters
Domain: Idiom 成语
Notes: (CC-CEDICT '牛鬼蛇神'; Guoyu '牛鬼蛇神'; Mao Zedong 1966, p. 36)