The term has been thrown at Durant as an insult since he departed Oklahoma City for Golden State in 2016 and an ex-Thunder teammate posted on social media a photo of cupcakes.
The Thunder didn't immediately announce the extent of the injury, but The Athletic reported "positive news for Oklahoma City" that Diallo suffered a sprained ankle in the "gruesome-looking injury".
On the play in which he was injured, Diallo went up for a rebound and got tied up with Warriors forward Jonas Jerebko. The pair collided in the air, and Diallo twisted his left ankle completely as the pair fell to the ground. The rookie landed awkwardly on his left leg midway through the fourth quarter and was taken off on a stretcher.
Russell Westbrook recorded his first triple-double of the season with 11 points, 13 assists and 11 rebounds.
Adams had 20 points and 11 rebounds, continuing a strong run of recent form in a season where he is putting up the best numbers of his career.
Dennis Schroder was the top scorer for the Thunder, coming off the bench to score 32 points in 28 minutes, shooting 12-for-19 from the field and 5-for-6 from beyond the arc.
The violation, technically, for directing inappropriate language toward a fan, took place with 61 seconds remaining in the first quarter of the Mavericks' 112-109 victory over the reigning National Basketball Association champions.
The incident capped a turbulent week for Durant, one that saw an angry, late-game exchange with Draymond Green carry into the Warriors locker room last Monday night in Los Angeles.