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A person who is addicted or obsessed to social media.
Once I introduced my mother to face book she became a social mediac.
by Sharkynm January 14, 2018
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A person who is completely obsessed with social media.
Jim: Man, Trish had posted another thing on Facebook. Add that with the other social sites.

Mike: She is a complete social mediac, man.
by Momoco926 May 22, 2018
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