I don’t think I had heard to term “selfie” until a few years ago. Now its an established word in the English lexicon. The term appears in Wikipedia, is a title in a TV series, the Oxford Dictionary, its the title of lots of books for sale of Amazon, and it’s the subject of lots of scholarly articles accessible in the University of the Arts e-library under subject areas including the sciences and arts. The origin of the term is claimed to be Australian see here.
So this is me today, feeling a bit flat. (I’d prefer the selfie if I had hair, a straight nose and square chin etc. but hey this is me like it or not!).