To be honest, I thought this was a worthless name until I Googled "happy hour flights." Seems to be primarily an Australian thing. It might find a buyer in Quantas or Virgin. Apparently 1300 people a month choose their airline by whether they get free booze, and it is memorable - at least until you've had a few drinks.
I wouldn't reg it, but I wouldn't dump it yet either. Why not just stick it on a one page wordpress site and see if it gets any traction?