These are a few of the new words added to dictionary in 2012. Overall they are better than the 2011 words that were added to the dictionary.
aha moment - Thanks to Oprah for this one.
flexitarian - A person who is vegetarian but occasionally eats meat or fish
earworm - A song that gets stuck in ones head.
energy drink - Redbull anyone?
game changer - There was a cool movie titled this also in 2011
gassed - Tired / drained of energy