Try use "thing". Replacing jargon with "thing" when explaining complex things to people seems to make the things simple. Because the word "thing" is a general thing (that can be anything). We focus on the core idea. People begin to understand the core thing or message of the story, i.e. maybe what something does interestingly and how it works; therefore, more encouraged to know further.
But careful. We might further complicate things. Because it is general, we need to clarify the "thing" used when explaining things. Do not mix up several individual things involved in the story. Use "thing" for short story and it seems to work better for casual talk.
Looks like I have used "thing" with care here to explain some complex things. What if more people start using "thing" more often in conversation. OK, speechless.