Arnold Schwarzenegger's back — as WWE pro wrestling's social media ambassador

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Arnold Schwarzenegger and Vince Mcmahon on WWF Smackdown in 1999. Over a decade later, Schwarzenegger served as WWE Raw's social media ambassador on Monday, Oct. 8, 2012.

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Arnold Schwarzenegger smiles during his book signing for 'Total Recall' at Barnes & Noble bookstore at The Grove on October 5, 2012 in Los Angeles.

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Former pro wrestling bad guy Jesse Ventura (L) is congratulated by Arnold Schwarzenegger (R) moments after Ventura was sworn in as Minnesota state's 38th governor Jan. 4, 1999 in St. Paul, Minnesota.

Former California Gov. Arnold Schwarzenegger is serving as the WWE social media ambassador Monday night during the WWE Raw pro wrestling show. Uh, so what’s a social media ambassador do? Tweet about wrestling, obviously.

He started Friday night, getting into it on Twitter with WWE wrestler Dolph Ziggler. They exchanged barbs, with Ziggler referring to his nickname “The Show-Off,” then Schwarzenegger firing back “You’re right, you are the Show Off. Every time I see you I turn the show off.”

Schwarzenegger continued Monday as Raw started:

Everyone, everywhere, stand up and applaud. Mr. McMahon is on the TV. #WWE #RAW

— Arnold (@Schwarzenegger) October 9, 2012

He also got into it on Twitter with David Otunga (perhaps better known as music diva Jennifer Hudson’s husband):

You're looking pumped, but you don't really want my answer. @davidotunga: @schwarzenegger Who wins this pose down? twitter.com/DavidOtunga/st…

— Arnold (@Schwarzenegger) October 9, 2012

He’s in the Los Angeles area Monday, appearing Monday night on “The Tonight Show with Jay Leno” as he makes the rounds promoting his new autobiography, “Total Recall: My Unbelievably True Life Story.”

Maybe Schwarzenegger will be able to have an impact on WWE's social media popularity — he's got a higher Klout score.

Schwarzenegger’s been involved with pro wrestling before; he tossed a steel chair to “Stone Cold” Steve Austin and helped beat up Triple H, then drank beers with him and the Rock on an episode of Smackdown.