jargonistic

noun

1. incoherent speech; gibberish
2. a language or dialect unknown to one so that it seems incomprehensible or outlandish
3. a mixed or hybrid language or dialect; esp., pidgin
4. the specialized vocabulary and idioms of those in the same work, profession, etc., as of sportswriters or social workers: a somewhat derogatory term, often implying unintelligibility
5. speech or writing full of long, unfamiliar, or roundabout words or phrases

intransitive verb