DuckCorp Dico

Found one definition

1.                 From The Collaborative International Dictionary of English v.0.48:
                   
   
   
                   
                     
   Cranky \Crank"y\ (-?), a.
      1. Full of spirit; crank.
         [1913 Webster]
      2. Addicted to crotchets and whims; unreasonable in opinions;
         crotchety. [Colloq.]
         [1913 Webster]
      3. Unsteady; easy to upset; crank.
         [1913 Webster]