slash tag

slash tag (noun) - A type of hash tag that implies a threat.

slash tagging (verb) - The act of applying a hash tag

Billy ended his Facebook rant about who ever stole his iPod by slash tagging #iwillcutyou

Molly was particularly pleased with her party outfit and posted her picture on Facebook with the slash tag #watchoutbitches

slash tag by Konundrummer February 9, 2013

Slashtag 

A slashtag is a form of hashtag that opposes the hashtagging of a phrase that someone else gives.

J: That dinner was awesome
T: I concur. 'twas hashtag sweet
P: (In disagreement with T) Slashtag boring

Slashtag by Whykemism August 19, 2013