argot

noun3

1. •
   A secret language or conventional slang peculiar to thieves, tramps and vagabonds.

   • Sadie had, in the argot of the day, a really good built. — 2011
2. •
   The specialized informal vocabulary and terminology used between people with special skill in a field, such as between doctors, mathematicians or hackers.

   • The conversation was in the argot of the trade, full of acronyms and abbreviations that made no sense to the uninitiate.
3. •
   A strongly marked style of speaking.

   • Merle spoke in the thin nasal argot of this city's slums: "This the fus toim yez been lobbed, oy, kiddow?" — 1961

noun1

1. •
   An inhabitant or resident of Argos.