jargonnaut 

An individual who speaks using precise acronyms, slang, and obscure words related to one or more specialized professions even when not talking to other individuals in the profession; someone who talks over others' heads subconsciously using specialized words.

Bones is such a jargonnaut --- she left the entire jury behind while describing that kid's skeleton.

I don't get invited to parties anymore because whenever I do, I turn into a total jargonnaut and look like an elitist asshole.

jargonnaut by The Lesser Evil from Scene III June 30, 2011

Jargonnaut 

Someone that delights in using far too many acronyms in front of people that work in different industries.

"Wow, did you catch anything that Simon said? Now he's a Jargonnaut!"

Jargonnaut by Emily Crispian December 11, 2011

jargonaut

1 a person who uses jargon in every-day conversation.

2 a person adept in the navigation of heavily jargon filled literature.

A jargonaut might say: she/he is the NCO @ the HPY in charge of DCH and MBS processing on a RTS basis in accordance with DCHMBSP.

jargonaut by Divado January 14, 2008

Cross-jargonation

Often times, specialized fields of study or knowledge will have field-specific definitions for various words. This is known as jargon. When two people representing different fields of knowledge come to conflict over an idea due to their respective jargons, cross-jargonation occurs. Generally one or both parties will refuse to compromise on the definition, preferring instead to act as if their definition is superior and unalterable. The result can often be heard as a loud popping sound, caused by the skull of an innocent kitten spontaneously detonating.

Gary was presented a query by his philosophy professor, whom we shall call Ace; Can a person be both a skeptic and an agnostic? Gary answered yes, and was quickly rebuffed by Ace, who stated that the two things were necessarily in conflict. Detecting a case of cross-jargonation, Gary suggested that Ace perhaps consider a more universal definition of the two terms. Ace refused, and all generally agreed that he is a total fucktard. The detonating kitten skull was heard shortly after.

Cross-jargonation by whitedevilbrewingco February 12, 2008

Jargonaut

One who seeks to invent new jargon.

"Penn is a Jargonaut as he made a word up just so he could get in the dictionary.

Jargonaut by Teller July 8, 2003

Jargonator 

A human machine that produces pretentious vocabulary, convoluted phrasing and vague meanings for the purpose of appearing more intelligent. They favor terms that are unfamiliar to most people and do not use them in the correct context.

When Jonathan speaks, I don’t understand a word he says. He’s such a Jargonator!

Jargonator by hobrarian January 12, 2009

Jargonaut

One who travels through the deepest depths of hell, in search of new jargon. Typically travels with other jargonauts, never leaves home without blank DVDs (in case "Mr. & Mrs. Smith could possibly be pirated off of someone they encounter on the way).

Has jargonaut lost his mind?
Can jargonaut see or is jargonaut blind?
Can jargonaut walk at all,
Or if jargonaut moves will he fall?
Is jargonaut alive or dead?
Has jargonaut thoughts within jargonaut's head?
We’ll just pass jargonaut there
Why should we even care?

Jargonaut by Carl Engelke April 18, 2006