That was the joke moniker given to the 2010 Junior Welterweight clash between Amir Khan and Paulie Malignaggi. The title played off the fact that Khan had a notoriously weak chin, while Malignaggi is one of the most feather-fisted fighters to make it to boxing's elite echelons. As it happened, Khan completely overpowered Malignaggi offensively, stopping him in the 11th round (later, Khan even managed to rehabilitate his chin by winning a brawl with Argentine slugger Marcos Maidana).
But this title also may apply to the 2012 presidential election, argues Jon Chait. We have an unpopular incumbent presiding over a weak economy. On the other hand, he'll be facing off against a Republican who will likely be reviled by much of the electorate. It's hard to know how that will shake out -- reelection is often just a referendum on the incumbent, but Obama -- as much as his popularity has taken a hit -- still starts at a noted advantage over Romney and a gaping one over anyone else the GOP might put up.