Suge Knight >> "Bitch Ass" Diddy Knows I Didn't Murder Tupac ... 'Cause Tupac's Alive!

Suge Knight just fired a metaphorical shot at P. Diddy ... telling us he's a "bitch ass" who should be getting more heat for plotting to kill Tupac Shakur.

Suge was leaving 1Oak last night when he unleashed a rant about the Tupac shooting, saying ... "Everybody know off the top, I ain't the n**** killed Tupac. I'm the n**** protected Tupac!"

Then he points a finger directly at Diddy -- "Bitch ass Puffy can get him a mutha******* star (on the Walk of Fame), and every rat in the world say he's the one who killed Tupac, or had him shot."

Source >> TMZ