Ric Flair Blasts Conor McGregor: You're a Classless Rip-off Loser

THE NATURE BOY IS PISSED!!!!

Ric Flair is firing back at Conor McGregor ... blasting the UFC star after McGregor proclaimed that most WWE wrestler are "messed up p**sies."

"Coming from a guy who built a career copying my persona, I expected the type of class we get from Ronda or Anderson," Flair posted on Twitter.

"After Diaz finishes you again, I dare you to try guys like Dolph, Brock, or Fit. Oh you're welcome for your gimmick."

"If anyone doubts whether or not [Dolph Ziggler] could tie Conor in a knot, do yourself a favor and Google his accomplishments."

FYI, Ziggler was a beast as a college wrestler -- setting records for career wins and was a 3-time All- Mid-American Conference champion.

Does that mean he could win in the UFC? Only one way to find out ...