Apparently, no hatchet has been buried between B.J. Penn and Nick Diaz, at least not on "The Prodigy's" side, as it seems the Hawaiian is still a little bitter about his loss to the wily Stockton native.

After (temporarily?) retiring from the sport of mixed martial arts (MMA) following his unanimous decision loss to the former Strikeforce welterweight champion at UFC 137 back in October, Penn has seemingly changed his amiable tune and now has some choice words for Diaz.

Either that, or someone hacked his social media account.

"The Prodigy" took to his official Twitter account to call out the UFC 143 headliner and post the above photo of the two together after the fight, saying that Diaz used coward-like tactics to beat a smaller man.

Even Jon Fitch couldn't escape from being picked on by the Hawaiian.

Check it out:

@nickdiaz209 Look how much bigger you are in this pic..I thought you were gonna scrap from the beginning homie? What was that coward fence holding strategy to tire out the smaller man? Street fighter my ass! I made you fight like glass jaw @jonfitchdotnet poser! I'll be ready for that weak bs next time we fight!

Oh snaps!

A few weeks after their UFC 137 clash, Cesar Gracie, Nick's trainer, extended an open invitation out to "The Prodigy" in hopes that he would come down to the "209" and join forces with the Cesar Gracie fight team alongside Diaz. The former two division (155 -170) Ultimate Fighting Championship (UFC) champion wanted no part in joining forces with the crew from California.

Did Penn just fire the first bullet in his comeback trail? If so, he will have to wait in line if he hopes to rematch Diaz anytime soon.

That's because the Brazilian Jiu-Jitsu (BJJ) black belt has bigger fish to fry at the moment in the form of Carlos Condit as they are set to headline UFC 143 on Feb. 4 in Las Vegas, Nevada, to crown the interim UFC welterweight champion in the wake of Georges St. Pierre's recent surgery that will have him sidelined for most of 2012.

What's your take on B.J.'s twitter rant, Maniacs? Could 'The Prodigy" be ready to step back into the Octagon, and if so, will a second fight between Diaz and Penn turn out differently than their first encounter?

Sound off!