The Spurs star was in attendance for Sunday night's action which included reigning champion Luke Humphries being knocked out by Peter Wright.
Maddison was spotted alongside Spurs teammate Brennan Johnson just hours after the north London side were held to a disappointing 2-2 draw with Wolves.
Taking to Instagram, one Spurs fan was less-than impressed at the midfielder's appearance at Ally Pally.
He said: "You taking the p***? The form we're in and you go the darts? Unacceptable."
But within 12 minutes of being sent the fans' message, Maddison clapped back in typical style.
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"Shut up you wally," he wrote, with a laughing emoji to accompany it.
Tottenham's 2-2 draw was just the latest example of Spurs' habit of going behind first in games.
Spurs have become the first team since the inception of the Premier League in 1992 to concede first in 15 home games in a single calendar year.
Spurs have now fallen behind first in seven top-flight home matches this term from their ten fixtures at the Tottenham Hotspur Stadium.
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From those games, they have won just three times - coming from behind to beat Brentford, West Ham and Aston Villa.
Meanwhile they have gone on to lose on three occasions - against Arsenal, Ipswich and Liverpool - while also drawing once, against Wolves.
In the seven home games that Spurs have gone behind in this term, they forced themselves back on level terms by half-time on three occasions.
Reflecting on the run, manager Ange Postecoglou said: "It hurts me because I'm responsible ultimately. I'm the person in charge. So of course it hurts.
"When I see how hard they are trying, it hurts even more because you want them to get a reward and I think they deserved a reward for their efforts even though they were dipping into their reserves of energy.
"I wanted them to get a reward for their efforts. So of course it hurts. It hurts immensely.
"At the same time it's my responsibility for where we're at right now and it's my responsibility to try to get us out of it."
Tottenham are next in action on January 4 when they host Newcastle United.
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