1. special words or expressions used by a profession or group that are difficult for others to understand: "legal jargon"
▪ a form of language regarded as barbarous, debased, or hybrid.
Word Originlate Middle English (originally in the sense ‘twittering, chattering’, later ‘gibberish’): from Old French jargoun, of unknown origin. The main sense dates from the mid 17th century.
