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Someone who uses hashtags incorrectly and doesn't fully understand the social media landscape. By using hashtags on Facebook, which has no functional purpose, they prove that they're still trying to be cool and social media savvy yet failing.
Monica's Facebook post: "I'm so tired, I'm ready for this workday to be over! #work #needanap #sleepy #9to5 #overit"

Monica's friends: Monica is such a hashbeen! Doesn't she know hashtags mean nothing on Facebook?
by evok advertising May 09, 2013