Omaha is considered, by some, to be the hardest game of Poker to master. Of all of the different games of Poker, Omaha is for many the hardest to learn to play and the hardest to bluff in. It is played most often at fixed limits, like Texas Hold'em and pot limit.
noun. : draw poker in which an extra hand is dealt facedown and may be taken entire by the first player who then discards his or her original hand faceup for exchange individually or entire by each following player until one of the players knocks, the drawing ends, and the hands are shown to determine the winner.