Presidents often become the recipients of nicknames. Nixon was "Tricky Dick." Reagan was "The Gipper" to those on the Right, and "An Amiable Dunce" to those on the Left. Bill Clinton will be forever remembered as "Slick Willy" and George Bush was "W" for the Right and "Stoopid" to those on the Left.
But for a nickname to stick, it needs to have some elements of mental shorthand that resonate with broad public perception. Ladies and Gentlemen, I give you Barak Obama, "The Marxist Metrosexual."