Obama: Rich must pay fair share. What is fair?

"All I'm saying is that those who have done well, including me, should pay their fair share in taxes," Obama said in a speech that effectively staked out the ground on which the 2012 presidential election will likely be fought. (1)

Anytime you hear the term fair coming from a politico your antennae need to go up to full extension. Fair is one of those political terms that mean what the particular politico wants it to mean in a particular context. Maybe a better way to frame the term fair is that it has no meaning at all other than that meaning given by the user at a particular moment. How so?

Webster defines fair as: free from bias, dishonesty, or injustice: a fair decision; a fair judge. That is a very noble definition. However, when fair is actually used, put into action as it where, is fair used free from bias?

Maybe a better definition of “fair” is: what you are doing and what the other guy is not doing -or- fair is where you go to get your pig judged.

Notes:

(1) Obama: Rich must pay fair share of deficit cuts, Agence France-Presse, 09/19/2011, http://www.rawstory.com/rs/2011/09/19/obama-rich-must-pay-fair-share-of-deficit-cuts/