How bad is Degang Guo's mouth?

Degang Guo is a famous crosstalk performer and critic. His artistic style is mainly humorous, exaggerated and authentic Tang and Song cultural ridicule, including satire, disgust and ridicule, and he is especially good at depicting life experiences such as being cheated, fooled and played with through exaggerated language. So his mouth is really lethal, but it is only a part of his artistic form and one of the manifestations of his comprehensive talents. Of course, in real life, anyone should pay attention to his words and deeds to avoid being too mean and hurting others' feelings.