By the Oxford Dictionaries: “A photograph that one has taken of oneself, typically one taken with a smartphone or webcam and uploaded to a social media website.” Note, this does not mean it will necessarily be included in the Oxford English Dictionary. I guess it’s sort of like a dead Pope’s first miracle on the way to sainthood? Anyway, selfies are wonderful, humane, normal things to create and share, and one should be suspicious of those who hate them too much.