defriendestration 

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.

defriendestration by jbenez September 6, 2010