It's hard to tell for sure, but when Joe Biden embraced President Obama at the health-care reform signing ceremony earlier, it sounded like he said, "This is a big fucking deal." It's possible it could have been "freaking," though, to be honest. You can really only hear it with headphones on, and even then it's not entirely clear. Would Biden really drop the F-bomb in front of so may cameras and microphones? That would be crazy, but it is Joe Biden after all.
Update: Robert Gibbs tweets: "And yes Mr. Vice President, you're right..." That's our Joe! [Twitter]