小四骑坐小三跪下呼喊万岁
[xiăo sì qí zuò xiăo sān guì xià hū hăn wàn suì]
The phrase involves complicated social hierarchy or relational issues within a love triangle. A 'second' party rides over a 'third', both terms often used to describe complex romantic relationships; calling out loyalty towards a higher authority might satirize certain types of interpersonal relations.