doorknock

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[edit] English

door +‎ knock

doorknock (plural doorknocks)

(Australian) A campaign of going from house to house knocking on doors, such as for a charity appeal
- 2009 March 2, Holly Ife with AAP, “CFA and DSE warn of fires threatening Victoria, deny exaggeration”, Herald Sun:
  
  […] mobile phone providers have sent text messages to Victorian customers warning them of the conditions, in what has been described as an "electronic doorknock".