If the presentation is by a technical* person to other technical* people, and you are just sitting in, then its fine. You just don't understand. The techies do. Its just domain knowledge speeding communication.<p>If the presentation is to non-technical people, then its probably jargon intended to bullshit you into thinking the speaker knows what they're talking about, and also a game brinksmanship to dare you to call their bluff. Call them on it. If they do know what they are talking about, you'll learn something (and probably so will everyone who was keeping quiet). If they don't, well, you learned something too.<p>* substitute lawyer, doctor, {domain_professional}