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row-dow-dow

row-dow-dow
  (ˈraʊdaʊdaʊ)
  [Echoic.]
  An imitation of the sound produced by beating a drum.

1814 Scott Wav. xxxiv, As this was beyond the capacity of the drubber of sheep-skin, he was fain to have recourse to the inoffensive row-dow-dow. 1863 Life in Normandy I. 25 The band ceased to play, and the drums struck up a rōw-dōw, rŏw-dŏw-dŏw, all striking at the same moment.

Oxford English Dictionary

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