A person so full of luck in poker that it is disgusting and ridiculous. There is surely some skill involved, but a luckbox will demonstrate more luck mixed in with that skill than any other player.....ever......in the history of the world......even more than Chris Moneymaker, which is just absurd.
Player 1: I just caught a flush on the river to win a 500 dollar pot! The other guy had Aces but I cracked them good!
Player 2: Stfu you luckbox.