What does batch Mandarin mean?

It means that a person speaks poor Mandarin, which makes people laugh and cry.

Let's take Putonghua as an example. We are often ridiculed by others, because most of our Cantonese people can't speak Mandarin well, and their pronunciation is not standard, and they are always mixed with dialect accents, even half Mandarin and half Cantonese.

For example, if you go to a department store to buy a pair of shoes, you don't know where the shoes are, and the salesman who speaks Cantonese can't understand them. When you say "little friend" in Mandarin, the other person looks puzzled and doesn't know what you want to express, which leads to jokes and misunderstandings. In fact, this is related to the fact that we seldom speak Mandarin. Some words that we can't speak in Mandarin are spoken in dialects, which is loose Mandarin.

Mandarin is the national language. Practicing Mandarin well at ordinary times is helpful for us to communicate with others.