Wii Shoulder

I have invented a term which describes a condition affecting several members of my close family along the lines of tennis elbow, it is called Wii Shoulder. My little sister received a Wii as a Christmas present and now those of us who indulged in a little too much bowling, were too zealous at tennis and were desperately trying to hit a home run all have stiff achy shoulders, or Wii Shoulder as it will henceforth be known.