D defs.my
Entry 4 senses Webster, 1913

Drummer

/drŭm'-ẽr/ · Drum·mer · IPA /ˈdɹʌmɚ/
01 n. One whose office is to best the drum, as in military exercises and marching.
  1. 1.
    One whose office is to best the drum, as in military exercises and marching.
  2. 2.
    One who solicits custom; a commercial traveler.[Colloq. U.S.]
  3. 3.
    A fish that makes a sound when caught(Zool.)
  4. 4.
    A large West Indian cockroach (Blatta gigantea) which drums on woodwork, as a sexual call.(Zool.)