A clinical test used by physicians to look for rotator cuff pathology in the shoulder.  It is used to identify injury of the supraspinatus.  The test is done with your arms extended out in front of you with your thumbs pointing to the ground as if you were emptying a can.  The doctor asks you to resist as he attempts to push you arms to your side.  A positive test is noted if this maneuver produces pain in the shoulder.