The hot British-Irish band One Direction has made a dance called the Inbetweeners' Dance. It involves movement of the elbows and arms. To do the Inbetweeners' Dance, you must make a fist with one hand, hold it in front of your chest, and then overlap the other hand on top of it. Proceed by raising your right elbow twice, putting it down, and raising your left elbow twice (putting it down) and then Repeat. A Lot. Wow, you're an Inbetweener!
"I died laughing when One Direction did the inbetweeners' dance in One Thing!"