Twerk

Twerking, the rump-busting up-and-down dance move long beloved on America's hip-hop scene, has officially gone mainstream. It's got the English dictionary entry to prove it. ...
"Twerk" will be added to the dictionary as part of its quarterly update, which includes words such as "selfie," the word typically used to describe pouty smartphone self-portraits, "digital detox" for time spent way from Facebook and Twitter, and "Bitcoin," for the nationless electronic currency whose gyrations have also caught the world's eye. bigstory.