The streets of Kankossa's busy daily market often ring with laughter as female vegetable vendors joke with each other and passersby. This joking comes at a time when gender roles are shifting in Mauritania since it has become challenging for many men to provide for their families, causing women to take on roles as significant income earners. Likewise, as slavery has diminished over the last century, Ḥarāṭīn, a group consisting of ex-slaves or descendants of slaves, have been negotiating their places in the polity. To gain insight into the shifting social order, this article analyses examples of joking by Ḥarāṭīn market women who in this way engage with issues of gender and the social hierarchy. The social space of the market is a critical setting for such practices since it both facilitates their occurrence and also gives women's words weight because they are spoken in the presence of an audience. While jokes are always ambiguous, women's joking in front of others in this space makes their jokes bite, thus enabling them to give voice to deeply personal anxieties and make sense of changes in the social order.