Most IT people i know actually like it when people outside their field don't understand what they're doing when they're using jargon and acronyms and technical slang. It makes them look bright (or so they think).
One thing i like to tell people outside the field is daily software development is 99% convention over very simple concepts wrapped in jargon (aka: that's the way it works because people designed it this way, and gave it this name, not because of some fundamental law of physics), and 1% of "hard" things (the very rare times in your carrier when you had to implement a brand new complex algorithm yourself). The percentage may vary depending on the particular job you have, but unless you're working in R&D that's pretty much the idea.
Once you realize that you actually are brighter when you manage to remove all the cruft around what you're doing and explain it simply to "normal" people, all of the sudden you're much more successful at doing it.