What do you mean, Brother Cai?

Refers to this man who knows nothing, an incompetent loser. It is an authentic Shaanxi Guanzhong dialect.

It should be "Riba _" and "_" is an onomatopoeic word pronounced Xu or Cai. In Shaanxi Guanzhong dialect, chua is pronounced, which means short and fast fricative. Riba refers to an act. When the word "Riba _" is combined, the real metaphor can only be understood, but not expressed. By extension, it means incompetent loser.

There are many dialects in Guanzhong, which are local sayings that have evolved from people's behaviors, actions and voices in daily life. It is humorous and changeable, and some of it is even absurd and elegant.