he's commonly called "xiangsheng" by fellow genshin impact character tartaglia in comics and works depicting them together. (see chili, zhongchi)
outside of the game, xiangsheng is a comical, traditional performing art from China.
*this text represents common stereotypes for both the characters and is not an actual depiction of their canon behaviour*
Tartaglia: Xiangsheng! I haven't seen you in a while. Are you in the mood for a fight? Zhongli: I am not, for like a teacup, I ought maintain myself stable or I'll stain the table. Osmanthus wine blah blah. Now give me money.