The discourse of difference is a concept derived from studies in speech codes and the ethnography of communication tradition. The concept refers to the act of naming or remarking on social, racial, or other types of difference between individuals or groups. Such a speech event often provokes a challenge to the speaker of difference, and may involve a prolonged contestation over the meaning of the original utterance and its appropriateness. Such a contestation is called a social drama, and, in the course of it, participants often engage in talk about talk—evaluations of the speech of others—that may include explicit statements about the values, premises, symbols, and rules of speaking that are important in their community.