A Wittgensteinian term for a way of talking.
See this quote.
Wittgenstein opens the Investigations with a game where two people are building something. The first makes calls (e.g. “slab” or “pillar”) to which there is an appropriate response (bringing a slab, or a pillar, etc.). This is a paradigm case of a game which Brandom believes is merely verbal, not a language game at all, due to Brandom’s commitment to there being a “downtown” to language: for something to be a discursive practice for him, there must be the ability to give and ask for reasons.