Argot

An argot strengthens the identity of a social group.

Sadie had, in the argot of the day, a really good built.

The conversation was in the argot of the trade, full of acronyms and abbreviations that made no sense to the uninitiate.

Merle spoke in the thin nasal argot of this city's slums: "This the fus toim yez been lobbed, oy, kiddow?"