The Collaborative International Dictionary of English v.0.48:

Gallopade \Gal`lo*pade"\, v. i. [imp. & p. p. Gallopaded; p.
   pr. & vb. n. Gallopading.]
   1. To gallop, as on horseback.
      [1913 Webster]

   2. To perform the dance called gallopade.
      [1913 Webster]