Colloquial discourse can be understood as a conversation or communication that is informal and casual. There are many synonyms for colloquial discourse, such as chitchat, small talk, banter, friendly conversation, casual discussion, informal dialogue, or friendly banter. Often times, colloquial discourse is used to break the ice or to establish a bond with someone, and it can vary in length and topic. Colloquial discourse is an important aspect of social interaction, and it allows people to express themselves in a relaxed and natural way. With these different synonyms, it's clear that there are many ways to describe this type of communication.