Source : Free On-Line Dictionary of Computing

mouse elbow
     
         A tennis-elbow-like fatigue syndrome
        resulting from excessive use of a {WIMP}.  Similarly, "mouse
        shoulder".  {GLS} reports that he used to get this a lot
        before he taught himself to be ambimoustrous.
     
        [{Jargon File}]
     
        (1994-12-05)