Five fights: five fights of rice, which means meager official salary; Bend over: Bend over to salute. Bow and scrape to the superior for a meager salary.
bend over five times: bend over. Five buckets: five buckets of rice. Bend over for five buckets of rice. Metaphor to endure humiliation. Also known as "bend over and raise the bucket".
Bend over five buckets of rice: the salary of the county magistrate in the Jin Dynasty, followed by the meager salary; Bend over: to bow down and salute, refers to bending over others. Bow down and salute for a meager salary. Metaphor? ...