An angry mob refers to a large group of people who are very upset, frustrated or enraged about something. They may be protesting against an issue, expressing their anger towards someone or something, or seeking justice for a wrongdoing. The term "mob" implies that the individuals in the group are acting collectively and emotionally, often without thinking rationally or considering the consequences of their actions. An angry mob can be dangerous if not controlled and may lead to violence, destruction of property, or other forms of unrest.