Source : Webster's Revised Unabridged Dictionary (1913)

Swash \Swash\, v. i. [imp. & p. p. {Swashed}; p. pr. & vb. n.
   {Swashing}.] [Probably of imitative origin; cf. Sw. svasska
   to splash, and, for sense 3, Sw. svassa to bully, to
   rodomontade.]
   1. To dash or flow noisily, as water; to splash; as, water
      swashing on a shallow place.

   2. To fall violently or noisily. [Obs.] --Holinshed.

   3. To bluster; to make a great noise; to vapor or brag.