Having the best flush possible in poker. Often misunderstood as an ace high flush. In some games of poker, like omaha or hold'em, there will be the possibility of a straight flush and an ace high flush would be beat. When this happens, an ace high flush (unless it is the royal flush) is NOT the best hand, thus, it IS NOT the nut flush.
Flop:
K J of diamonds, 2 of Spades
Turn:
9 of diamonds
River:
2 of Clubs
Your hole cards: 10 Q of diamonds
Your opponents hole cards: A 7 of diamonds
opponent: "I've got the nut flush!"
You: "No, idiot, you have the seconds nut flush; I have the nut flush; I have a straight flush 9 through King, you just simply have an Ace high flush. I win, YouJustGotPwnd."
K J of diamonds, 2 of Spades
Turn:
9 of diamonds
River:
2 of Clubs
Your hole cards: 10 Q of diamonds
Your opponents hole cards: A 7 of diamonds
opponent: "I've got the nut flush!"
You: "No, idiot, you have the seconds nut flush; I have the nut flush; I have a straight flush 9 through King, you just simply have an Ace high flush. I win, YouJustGotPwnd."
by Bad Beat May 27, 2007
Urinating after masturbation, in order to 'flush out' the residual nut left in the shaft of the penis.
"Bro I just rubbed one out and I forgot to nut flush. Now the end of my knob is stuck to the inside of my underpants."
by LancelotLongBottom June 8, 2019
by Coldceller January 20, 2005
by Wenchslikemr April 7, 2016