patois

Definition of Patois in English :

a characteristic language of a particular group (as among thieves)

Example Sentences:
'they don't speak our lingo'

2. patois

a regional dialect of a language (especially French); usually considered substandard

WordNet Lexical Database for English. Princeton University. 2010.

Patois

nounWord forms: plural patois (ˈpætwɑːz , French patwa)

1.

an unwritten regional dialect of a language, esp of French, usually considered substandard

2.

the jargon of particular group

nounWord forms: plural ˈpaˌtois (ˈpæˌtwɑz ; paˈtwäzˌ; French paˈtwa ; pȧtwȧˈ)

1.

a form of a language differing generally from the accepted standard, as a provincial or local dialect

2.

jargon1 (sense 4)

n. pl. pat·ois (pătwäz′, pă-twä)

1.

a. A regional dialect, especially one without a literary tradition.

b. Nonstandard speech.

2. The special jargon of a group; cant.

n.

Variant of Patwa.