D defs.my
Entry 3 senses Webster, 1913

dasher

/(dăsh"ẽr)/ · dash·er · IPA /ˈdæʃə(ɹ)/
01 n. That which dashes or agitates; as, the dasher of a churn.
  1. 1.
    That which dashes or agitates; as, the dasher of a churn.
  2. 2.
    A dashboard or splashboard.[U. S.]
  3. 3.
    One who makes an ostentatious parade.[Low]