Jargon

The tecnology or characteristic idiom of a special activity or group

Obsure and often pretentious marked by circumlocutions and long words

Inclusive and exclusive jargon.

Inclusive: sports

Gaming

Music

Exclusive: medicine

Law

Education

ˈdʒɑːɡ(ə)n/

noun

1. special words or expressions used by a profession or group that are difficult for others to understand.

   "legal jargon"

   synonyms:

   specialized language, technical language, slang, cant, idiom, argot, patter, patois, vernacular; More

   • archaic

     a form of language regarded as barbarous, debased, or hybrid.