Ask HN: What does being Agile mean to you?

I have spoken with more than 200 software companies in the last 6 months (while building Aha.io) and everyone is now "Agile." But when asked to describe what that means, the answers are often very different. For example, I was talking to a product manager last week who said that their team was "quasi agile." So, what exactly does Agile mean to you and what if any nuances do you think are unique in your own implementation?