English edit

Etymology edit

rock +‎ crusher

Noun edit

rockcrusher (plural rockcrushers)

  1. (CB radio slang) A very powerful transmitter.
    • 1962, CQ; the Radio Amateur's Journal, volume 18, numbers 7-12, page 95:
      It is a challenge to work all states with low power when so many amateurs are unable to do it with their rockcrushers.
    • 1981, Ham Radio, volume 14, page 71:
      Make similar measurements on your kilowatt rockcrusher by adding a simple in-line directional coupler (not described here) to your transmission line.