Girl talk is a term that describes intimate and candid conversation typically shared among female friends. While the term "girl talk" is commonly used, there are several synonyms that can be used to describe this type of communication. For instance, you could refer to girl talk as a "heart-to-heart", "chit-chat", "gabfest", "gossip", "catching up", "sharing secrets" or "bonding time". Each of these synonyms carries its own unique nuance and flavor, making them useful for different situations. Ultimately, the words you choose to describe girl talk depend on the context and the tone you are trying to convey.