"Erwuzi" refers to a betrayer or an informer.
Word origin:
According to legend, during the Spring and Autumn Period of the Eastern Zhou Dynasty, there were two officials named Liang Wu and Dongguan Liuwu during the reign of Duke Xian of Jin Dynasty. Because the two helped Li Ji murder Prince Shen Sheng, the people of Jin called them "Er Wu Couple", that is, two people named Wu were in a treacherous relationship. Later, "二五" became the abbreviation for traitors and traitors, and the term "二五子" also originated from this.
Account 2: In the Qing Dynasty of China, it originally referred to the incision of a secret society. At that time, the "Erwu Chai" was also the "Righteous Chai", which referred to those who betrayed the organization and specialized in gossiping behind others. people.
Extended information:
The nickname of "Two Five Boys":
1. Traitor
Pinyin: pàn tú.
Interpretation: Generally speaking, it refers to a person who has betrayed behavior. Now it specifically refers to a person who betrays the motherland or betrays the revolution.
From: Li Deyu of the Tang Dynasty, "Wuzong changed his name and told Heaven and Earth": "Control the strong captives in the north, and the traitors in the east."
Vernacular translation: Go north to subdue the violent enemies, go east Annihilate those who betray you.
2. Traitor
Pinyin: nèi jiān. ?
Explanation: Refers to the hostile elements hiding inside to carry out sabotage.
From: "History of the Song Dynasty·Li Gang's Biography": "Kill out the traitors and make the gentleman's way."
Vernacular translation: Annihilate the internal hostile elements and promote the monarch's path. It lasted for several years.
Baidu Encyclopedia——Erwuzi