A white horse, five men with big fists and a pair of calligraphy. What idiom is this? The answer is a four-character pseudo idiom.

The answer is Dan Bai Shu Ma.

Explanation: When the ancient emperors gave heroes hereditary titles and certificates of exemption from punishment, they slaughtered white horses to show their commitment, which was later called "Danbai Tree Horse". From: The List of High Heroes: "The letter of Shen Yidan's book is based on the alliance of white horses." Yan Shigu's note: "The alliance of white horses means the blood punishment of white horses." Example: carry on the family line after the founding of the People's Republic of China.

◎ Tang Yang Jiong, later Zhou Qingzhou secretariat, Qi, Yu Wengong, tombstone.