Having the highest ranking flush that otherwise can't be beat.
SoundPoker Says: In hold em if you held the ace of spades with the five of spades and three other spades came on the flop (J, 8 & 3) you would have a flush to the ace (A-J-8-5-3 all spades). Conversely if you held the queen of spades and the eight of spades and three spades came on the flop including both the ace and the king you would hold the next highest spade and have the nut flush (a-k-Q-8-2 all spades).
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