What does "swash" mean?

Swash: To dash or flow noisily, as water; to splash; as, water swashing on a shallow place.

Additional senses

  1. 2.To fall violently or noisily. [Obs.] Holinshed.
  2. 3.To bluster; to make a great noise; to vapor or brag.
  3. 4.Impulse of water flowing with violence; a dashing or splashing of water.
  4. 5.A narrow sound or channel of water lying within a sand bank, or between a sand bank and the shore, or a bar over which the sea washes.
  5. 6.Liquid filth; wash; hog mash. [Obs.]
  6. 7.A blustering noise; a swaggering behavior. [Obs.]
  7. 8.A swaggering fellow; a swasher.

Sources