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The act of de-friending someone on facebook, often for socio-political reasons.
After getting hired at the firm, Mark defriendestrated Gary whose incessant posting of "your mom" jokes and links to NWS material proved a dangerous liability to the new job. This defriendestration was unbeknownst to Gary, but was reciprocally evident to all their mutual friends.
by jbenez September 06, 2010
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