'Patois' definitions:

Definition of 'patois'

(from WordNet)
noun
A characteristic language of a particular group (as among thieves); "they don't speak our lingo" [syn: slang, cant, jargon, lingo, argot, patois, vernacular]
noun
A regional dialect of a language (especially French); usually considered substandard

Definition of 'Patois'

From: GCIDE
  • Patois \Pa`tois"\ (p[.a]`tw[aum]"), n. [F.] A dialect peculiar to the illiterate classes; a provincial form of speech. [1913 Webster]
  • The jargon and patois of several provinces. --Sir T. Browne. [1913 Webster]

Synonyms of 'patois'

From: Moby Thesaurus