Top Definition
term to describe a social media user who abuses the hash tag features.
Have you talked to Elaine? The photos from last night aren't posted yet and she told me she was uploading them 5 hours ago.

Oh, she probably was, but you know that she's hashtaddict. Speaking of which, you should call her to make sure she knew you were drinking vodka tonic, not vodka soda. Nothing worse than getting your hash tags wrong.
by ray_rayrox April 30, 2013
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