In this article I provide an account of the way in which the domain of spoken communication is metaphorically constructed in English, on the basis of the analysis of over 450 metaphorical references to speech activity in a corpus of contemporary written British English. I show how spoken communication is mainly structured via a set of source domains that conventionally apply to a wide variety of target domains, such as the source domains of MOTION, PHYSICAL TRANSFER, PHYSICAL CONSTRUCTION, and PHYSICAL SUPPORT. Each of these source domains structures a particular aspect of speech activity, such as the achievement of communicative goals, the expression of meanings and ideas, the performance of speech acts, the negotiation of mutual relations...