bashtag

The act of using the category listing device on twitter for the darker purpose of insulting or bashing someone. Can also be used as a insult towards people who intentionally use hashing on Facebook when it serves no actual purpose.

I discovered my daughter possibly did not enjoy our family bonding when she updated her status saying, "went to the zoo with family #boring #kill me#why do they hate me". That little bashtag just won her a summer pass to the damn zoo.