Twitter me this, Twitter me that.

Apparently, the B.J. Penn vs. Cesar Gracie/Nick Diaz viral war of words has no end in sight after former Ultimate Fighting Championship (UFC) lightweight and welterweight champion B.J. Penn responded to the Gracie camp response to his original rant aimed at Nick Diaz.

The dispute erupted when "The Prodigy" sent out this tweet to Nick Diaz:

@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!

The Gracie camp then fired back via its official website:

BJ Penn has apparently not come to terms with the beating he received at the hands of Nick Diaz. At some point it is up to those around you to protect you from yourself. To take you aside and let you know you are wrong and help save you from your folly. Unfortunately for Penn he is surrounded by 'Yes Men' that are unwilling to do that. The outcome will be predictable, resulting in a fighter that will never push himself to the fullest and will always have excuses for his losses.

Now, Penn has taken to his official Twitter account yet again, this time to call out Cesar Gracie himself.

Check it out:

@CesarGracieBJJ Excuses?? The whole world knows I lost the fight including myself. I'm tired of you talking down to me Cesar, I hope you're in training camp right now because the next time I see you, you better not be "scared homie!"

Apparently, we all just can't get along.

After calling out Diaz and now Gracie, it seems the "The Prodigy" is itching to get back into the fight game and ready to end his short-lived retirement plans.

Though a fight with Cesar, who has one professional mixed martial arts (MMA) fight to his credit (a loss to Frank Shamrock in Strikeforce on 2006) is highly unlikely, that didn't stop Penn from challenging the MMA trainer just a few months after Gracie invited Penn to train with him and the whole crew from Stockton, Calif., which inludes Jake Shields, Gilbert Melendez, Nick Diaz and Nate Diaz.

Furthermore, Scott Hernandez, manager at BJPENN.COM, posted this article today in order to educate the masses by outlining the series of events that led to Penn losing all respect for Diaz and that the illusion that they were friends was just a "picture painted by the media."

In what seems to be the beginning of a bitter rivalry, the Penn/Gracie/Diaz saga is getting more and more intense by the minute.

Your move Gracie camp.