bashtag

bashtag

(ˈbæʃˌtæɡ)
n
(Communications & Information) informal (on the Twitter website) a hashtag that is used for critical and abusive comments
[C21: blend of bash and hashtag ]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
After launching a Twitter campaign called #McDStories to show the hard work that went into providing quality ingredients for McDonald's, the hashtag turned into what was later dubbed a "bashtag" forcing McDonald's to take down the tag within hours.