Scholars have recently begun to describe a speech form emerging in post-colonial cities which reflects the creative melding or ‘creolisation’ of elements from indigenous and former colonial cultures. These ‘urban varieties’ are not, strictly speaking, Creoles but rather indigenous languages whose structures and lexicons have been adapted to the complexities of urban life. A primary characteristic of such varieties is their ‘devernacularisation’. No longer tied to the cultural values represented by the languages in their more traditional forms, they reflect instead the new values and way of life found in the urban centres where they are spoken. This article, based on fieldwork conducted in Senegal between 1986 and 1989, describes the formation and role of one such urban linguistic variety, Urban Wolof. In particular, it focuses on Dakarois’ conflicting tendencies to accept Urban Wolof in Dakar as the most pragmatic form of urban communication while rejecting it as evidence of an undesirable creolisation between indigenous and French culture.