"Obama-ization," (or other forms of that), is usually a derogatory term meaning to radicalize something under the auspice and orders of President Barack Obama of the United States. In it's derogatory sense it is largely employed by those styling themselves "Tea Partiers," also called "Teabaggers" or the "Tea Party Movement."
It can also be used to denote something positive- for example, the "Obamazation" of the race issue within the United States (meaning the transcendence of racism), or other similar meanings.
By the same token, "Tea Bagger" is a derogatory term in itself, to describe honest Americans that love their country.