I am from Chongqing, too. "cub" is a joke. . He is a neutral word in Chongqing, and "zai" also has a close meaning. Playing with big friends since childhood is not always abusive. . Moreover, local accents are hard to change. This is our Chongqing dialect, a kind of blurted word. On some occasions, "Xiaoer" is a person who speaks highly of you and has a good relationship. On the other hand, you can treat our dialect equally.