With all the giddiness over the signing of the hard-fought healthcare reform bill into law, Vice President Joe Biden might be forgiven for dropping the F-bomb in the ear of the President of the United States … on open mike.

Fox News caught it and now it’s on YouTube for all to hear.

You have to listen closely.

Right after Biden introduces President Barack Obama at the White House East Room bill signing event, when they’re shaking hands, Biden turns and whispers in Obama’s ear: “This is a big f—ing deal.” (Just to be clear, there’s a u, c, and k missing from the quote).

Slight laughter from Obama before saying “thank you everybody” and beginning his remarks to the Democrats gathered before him.

USA-HEALTHCARE/OBAMAAlthough some of  Biden’s past off-the-cuff comments have been seen by the White House as unwelcome gaffes, the enormity of getting healthcare reform into law was enough to give the Veep a pass this time around.

White House spokesman Robert Gibbs even tweeted @PressSec “And yes Mr. Vice President, you’re right…”