1. Think in billboards (Construct your explanation in less than 16 words)
2. Increase your vocabulary. Try wordthink.com daily.
3. Hold off. Don’t speak just yet. Seek to compact your explanation.
4. Reframe it as an analogy or metaphor
5. Even if your audience isn’t a 5 year old, try to describe your idea in a way that they would understand.
Good luck!