Noun (plural selfies)
A photograph that one has taken of oneself, typically one taken with a smartphone or webcam and uploaded to a social media website: Occasional selfies are acceptable, but posting a new picture of yourself every day isn’t necessary.
Fonte: Oxford Dictionaries
Selfie: A Portrait of a Word
Since gracing the Internet, the word selfie has even had its own spinoffs (derivados). There’s the legsie, which is a selfie of legs. There are also bookshelfies, which are selfies taken in front of one’s bookshelf. Perhaps the most perverse type of selfie are funeral selfies, which are selfies taken on the way to, during or after a funeral, naturally. The fact that the word selfie has, in its short existence, already developed its own subcategories gives it the potential staying power that lexicographers look for when choosing whether or not to add a new word to the dictionary.
Read more: dictionary.com