Mac Miller Gets Sensationally Decimated At Celeb Hoops Game

CALL THE POLICE ... 'cause a rap star got straight up VIOLATED at a celeb hoops game this weekend by a street ball legend ... and the video is sensational.

The victim is Mac Miller -- who's currently dating Ariana Grande -- and happened to be playing against Bone Collector at the Power 106 Celebrity Basketball Game at USC.

Mac tried to play some defense on Bone ... and it ended BADLY.