Proper noun
(folklore) Five animals regarded as poisonous or otherwise hazardous in Chinese folklore: typically snakes, scorpions, centipedes, toads, and spiders.
(politics) Five groups regarded by the Communist Party of China as threats to their rule: Uyghur and Tibetan supporters of respective independence movements, Falun Gong adherents, and supporters of Chinese democracy and the independence of Taiwan.
Source: en.wiktionary.org