The Collaborative International Dictionary of English v.0.48:

Dashism \Dash"ism\ (-[i^]z'm), n.
   The character of making ostentatious or blustering parade or
   show. [R. & Colloq.]
   [1913 Webster]

         He must fight a duel before his claim to . . . dashism
         can be universally allowed.              --V. Knox.
   [1913 Webster] dashpot