In sociolinguistics, a sociolect or social dialect is a variety of language (a register) associated with a social group such as a socioeconomic class, an ethnic group (precisely termed ethnolect), an age group, etc.

Sociolect
Sociolect
Sociolect-based community detection
The Language of Soccer – a Sociolect or a Register?
THE ENGLISH PENITENTIARY SOCIOLECT: SOME LINGUISTIC-CULTURAL PECULIARITIES
Comparative Conclusion: "Islamic Russian"as a New Sociolect?
Semantic Variation in Idiolect and Sociolect: Corpus Linguistic Evidence from Literary Texts
On the Mizra?i Sociolect in Israel: A Sociolexical Consideration of the Hebrew of Israelis of North African Origin
Ways of Forming Expressive Vocabulary of Youth Sociolect (As Exemplified in French Language)
Certainty and uncertainty in spoken language: in search of epistemic sociolect and idiolect