The phrase "finger-snappingly with it" is a creative, informal way of saying that the term being discussed is very trendy or cool. When someone snaps their fingers, it can be a gesture of approval, rhythm, or enthusiasm (like snapping along to music). So, if something is described as "finger-snappingly with it," it suggests it’s so modern, stylish, or relevant that it would make you want to snap your fingers in approval—essentially, it’s "in sync" with current trends or popular culture. In other words, the buzzword is not just "with it" (cool or trendy), but so much so that it might inspire a positive reaction!

I’m at a loss too! Maybe it means it’s easy to write? I’m not even sure it’s a correct word. A snappy buzzword or catchphrase or slogan would be one that’s easy to remember and use.

buzzword...street lingo...young people are sometimes known to create some new words so they and their gang can feel exclusive. Occasionally the new lingo becomes widespread, other times it gets outdated fast. I doubt this one, "finger-snappingly", will survive, it sounds really dumb to me. "hipsters" back in the day would snap their fingers and say "cool" (that one caught on very well), so "finger-snappingly", like "snappy", is nothing more than a reference to that old hipster habit. It means "really fresh", I suppose. I suggest this is a waste of time, for a responsible teacher.