The ability of John McCain to continuously fuck-up what he is talking about - even on the basic things that he is running on.
An example would be when John McCain caught McFoot in McMouth disease and tried to redefine what a surge was because he could remember when it started and accidentally claimed that it started a year before it actually did.
A relative to the McGangBang sandwich. Purchased at McDonald's; you will need a Double Cheeseburger ($1), a 4-Piece Chicken Nugget ($1), extra added BigMac sauce, and a container of McDonald's BBQ sauce. Split the Double Cheeseburger in Half and insert three Chicken Nuggets in between (the fourth one will not fit properly, do whatever you want with it). Then open your container of BBQ sauce and pour it slowly on top of Nuggets. Close sandwich and enjoy!
Dude 1: Dude wanna get Donald's?
Dude 2: Sure man, I'm Jonesin' for a McSouthernCharmer.