Former Hawks superstar Josh Smith EVISCERATED Doc Rivers after yet another early playoff exit for the head coach -- railroading the dude in a profane rant on social media.
Smith held no punches back in going after the 76ers head man Sunday night ... clowning his old coach for losing Philly's playoff series to Atlanta in Game 7.
"'Don't nobody really like yo cap ass'," said Smith, who appeared to spend HOURS online Sunday ripping Rivers and the Sixers for the loss.
"You don't know how to make in-game adjustments. Everybody figured your ass out, man .