1. Out of the Mainstream: Used to describe the ideology of any political opponent.
2. Bird Flu/Avian Flu: the H5N1 strain of Flu that resembles that of the 1918 Spanish Flu Pandemic where 60 million died.
3. Politically Correct: Emerges as a worldwide phenomenon.
4. North/South Divide: In the US it might be Red States and Blue States but globally the 'haves' and 'have nots' are divided by a geographical if not psychological boundary.
5. Purple Finger/Thumb: The badge of honor worn by Iraqi voters proving that they voted in their ground-breaking elections.
6. Climate Change: (Or Global Warming.) No matter what your political persuasion, the fact remains that New York City was under 5,000 feet of ice some 20,000 years ago.
7. String Theory: The idea that the universe is actually constructed of 11-dimensional, pulsating planes of existence.
8. The Golden Quatrilateral: India's new superhighway system that links the key cities of the Subcontinent.
9. Jumping the Couch: Apparently losing complete emotional control; made popular by the escapades of Tom Cruise on the Oprah television show.
10. Deferred Success: The idea introduced in the UK that there is no such thing as failure, only deferred success.
Last year the Top Phrases were Red States/Blue States, Moral Values, and Two Americas.
Source : http://www.languagemonitor.com/Top_Word_Lists.html