New Words for New Situations

Selfie is a photograph you take of yourself by holding your camera or phone out in front of you at arm's length. The word self-portrait has been around for a long time and probably comes from that. Get an old word, change it to fit a new situation and you've got a new word like selfie. A flash mob is a crowd of people who gather together quickly and suddenly. It's often organised through social media. So when you put them together, you've got the perfect new word for the situation.