We all use jargon to some extent, often not realizing that we are inserting "code words" into our conversations. Jargon speeds communications between those in the know, while simultaneously keeping outsiders from knowing what it is you're talking about. Teens enjoy using various expressions to communicate with other teens because it's exclusionary to "old people," like parents.When a waitress calls out to the cook "Adam and Eve on a raft — and wreck 'em," the patrons may not understand that she's calling for two scrambled eggs on toast. But as long as the jargon is only between the waitress and the cook, the patrons don't need to know. In this case, jargon helps communication within the group, leaving others unaffected.Jargon becomes a problem when used to communicate with someone outside the group. Internet designers love to use acronym-laden terms like WPA encryption and RSS feed. Jargon saves them time when they talk to tech-savvy people but, to others, they might as well be speaking Swedish.Every line of business has its own jargon and, unless you’re talking to others in your "group," it's wise to use jargon sparingly when communicating with the rest of the world, lest you be perceived as aloof, cryptic or just plain geeky.