n.
the use of IT to bully someone, usually by sending or posting text or images with the intention of harming others.
Type: 5. Frequency — As a relatively new phenomenon, cyberbullying is becoming more frequent in media and politics as more victims emerge. The term occurs most frequently in Canada (see Chart 1). The case of Amanda Todd, a 15-year-old from Port Coquitlam, BC, who committed suicide in 2012 as a result of extreme and prolonged cyberbullying, changed public awareness in Canada (see the 2015 quotation). In 2013, Bill C-13 was proposed in Parliament to protect Canadians from online bullying (see the 2014 quotation) and passed into law in early 2015. Bill Belsey, a bullying expert from Cochrane, AB, has been credited with coining the term in 2000 (see the 2013 quotation); however, OED-3 lists a quotation from 1998.
See also: cyberspace
Images:

Chart 1: Internet Domain Search, 29 Jan. 2014