"Hot Boy" rapper Bobby Shmurda was ice-cold to a Tampa Bay Lightning supporter during the New York Rangers game on Wednesday -- trollin' the fan by waving a NYR towel right in his face!
The hilarious moment happened during Shmurda's epic night at Madison Square Garden -- when the Brooklyn rapper was in the stands cheering his face off for the Rangers in Game 1 of the Eastern Conference Finals.
Video shows Shmurda was gettin' his dance on ... and then he turned to a TB fan sittin' right behind him, and waved a "No Quit in New York" Rangers towel in the guy's grill.