Well, Fox News gave it their best shot, conducting a poll that asked:
As you may have heard, Vice President Joe Biden used foul language to describe how important he thought passage of the new health care bill was when he whispered to President Obama “this is a big expletive deal” — do you think the vice president’s use of foul language to describe the bill was offensive, or
not?
... but sadly, people weren't really offended, with 57% saying it was not a BFD.
Of course if Fox News really wants to find out what offends people, maybe they could poll Republicans to see what they think about their donations going to a bondage-themed lesbian sex club.