Gorilla Nems isn't feeling appreciated by the New York Knicks after lending them his trusty catchphrase ... and he's flipping them the bird as a staff, organization, and entire crew!!!
Bootleg Kev struck an apparent nerve with Nems when he asked if he gets free Knicks tickets since flipping his "Bing Bong" track into a remix for the team, and the Coney Island rapper went off.
Nems claims the NYK have "disgusting" business tactics, and are snakes in the grass ... and he says they make him jump through hoops to catch any hoops action at MSG.