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British Dictionary definitions for warchalking

warchalking

noun
  1. the practice of marking chalk symbols on walls and pavements at places where local wireless internet connections may be obtained for free via a computer, usually without permission
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Derived Formswarchalker, noun

Word Origin

C21: from w(ireless) a(cess) r(evolution) + gerund of chalk
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012