harshtag
A harshtag is any hashtag submitted that is mean or insensitive on social media or a genaral comment.
Son, "Dad, you have no hair anymore." Dad, "ouch, harshtag #hairloss." Or, #so&soisfatnow is a harshtag.
Harshtag
Term used to reinforce a burn or zinger so bad that no hashtags will do it justice.
Guy 1 to Guy 2: "you're an idiot and shit at table tennis"
Guy 3: "ohhh harshtag"
Guy 3: "ohhh harshtag"