Nut Low
The nut low is the best possible low hand in a high-low split game. In most games it is the wheel, A-2-3-4-5, and in deuce-to-seven lowball it is 7-5-4-3-2.
The simple explanation
In hi-lo games, half of the pot goes to the best low hand. The nut low is the lowest hand that is possible with the cards on the board. If you hold it, nobody can beat your low half.
A closer look
Because the nut low is the best low, holding it is safe: the only risk is that someone ties you. In Omaha hi-lo, the nut low changes depending on the board. For example, on a board of 3-4-7-9-K, the nut low is A-2 with the board (making A-2-3-4-7). Holding a weaker low, such as A-5, which makes 7-5-4-3-A, is dangerous, since it loses to A-2 and you can lose your half of the pot. Players aim at nut low draws.
A practical example
In Omaha hi-lo, the board is 3♥ 4♠ 7♣ 9♦ K♣ and you hold A♦ 2♣ Q♠ J♠. You have the nut low, A-2-3-4-7.
Full explanation
The nut low is the best possible low hand in a high-low split game. In most games it is the wheel, A-2-3-4-5, and in deuce-to-seven lowball it is 7-5-4-3-2.
The nut low is the best possible low hand in a hi-lo game.
In most games, it is the wheel, A-2-3-4-5.
It depends on the board in Omaha hi-lo.
Having it means that no one can beat your low.