The Oxford Dictionary of English (ODE) has added 200 new words and phrases in its latest edition. Here are some of the new terms. You can see a longer list here on Time.com.
automagically: automatically and in a way that seems ingenious, inexplicable, or magical
bromance: a close but non-sexual relationship between two men
buzzkill: a person or thing that has a depressing or dispiriting effect
chillax: calm down and relax
defriend: another term for unfriend (remove someone from a list of friends or contacts on a social networking site)
freemium: a business model, especially on the Internet, whereby basic services are provided free of charge while more advanced features must be paid for
frenemy: a person with whom one is friendly despite a fundamental dislike or rivalry
LBD: little black dress
matchy-matchy: excessively colour-coordinated
turducken: a roast dish consisting of a chicken inside a duck inside a turkey
staycation: holiday spent in one's home country
tweetup: a meeting organized by means of posts on Twitter
vuvuzela: long horn blown by fans at soccer matches
wardrobe malfunction: an instance of a person accidentally exposing an intimate part of their body as a result of an article of clothing slipping out of position