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happy slapping

British  

noun

  1. informal the practice of attacking, esp slapping, an unsuspecting passer-by and filming it with a mobile camera phone, footage of which is then circulated for the amusement of others

"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

Etymology

Origin of happy slapping

C21

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

He rose confident and happy, slapping his friend on the shoulder, with the old boyish exhilaration.

From Making Money by Johnson, Owen