Made famous by the terrible play and unbelievable luck of Aaron Kanter during the 2005 World Series of Poker, an unlikely river card that gives a player an improbable win to a hand that he should never had been in at any point at all.
After some raising and following a flop of 6c-5d-3h, Raymer bets with Kd-Kh and Kanter calls an uncallable flop with Qh-Jh (5% to win). The turn card is the 7h, Kanter bets $600,000, Raymer moves all in, and Kanter Calls off all his money with his weak draw. Raymer shows his pocket kings, and Kanter shows his queen-high flush draw, needing a heart. Naturally, he catches the first of a long series of Kanter-cards with the river 2h, and makes his flush to cripple Greg Raymer.
A phenomenon in film/television series, most notably streaming series, where the main premise is drawn out to such a point that it takes an entire season or more to get the parts of the series the audience is actually interested in seeing.
For example, if a series is titled "Surf Dracula," a majority of viewers would tune in expecting to see Dracula surfing by the first or second episode. However, the entire first season would instead be tedious padding and backstory before finally ending with Dracula surfing in the last five minutes of the season finale.
I watched "Smallville" on Netflix the other day. Dude, it was ten seasons of filler before he finally flew! Major Surf Dracula Syndrome!