What is jazz, anyway?

Jazheads wiuld be fmailiar withthe Louis Armstrong's rejoinder, "If you have to ask, you'll never know"
and it may indeed seem strange to ask after well over a year, over thousand posts
and a couple thosusand visitors, but I felt compelled to ask anyway.

Among the many definitions of jazz I've come across (I forget the writer's name who coined it)
is " spontaneous order" something I can relate to on many levels.

What's your definiton of jazz? feel free to sound (or type) off om the topic