A "selfie".

The Word of the Year

At Nelson Mandela’s funeral David Cameron and Barack Obama offended a lot of people by appearing in a “selfie.”
What’s that?
According to the Oxford Dictionaries it is “A photograph that one has taken of oneself, typically one taken with a smartphone or webcam and uploaded to a social media website.” Selfie was 2013’s “Word of the Year,” beating twerk (the provocative dance performed by Miley Cyrus at the MTV Music Awards), binge-watch (watching several episodes of the same TV series), and showrooming (comparing prices in a number of shops before buying the product online for less).
Here’s a list of some previous “Words of the Year”:

Oxford Dictionaries Word of the Year:

Year    UK                                                     US

2009    simples                                             unfriend
2010    big society                                        refudiate
2011    squeezed middle                              squeezed middle
2012    omnishambles                                 GIF (verb)