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In social networks, a defriending frenzy is a situation where an oversupply of friends leads to rapid, out-of-control deletion by the account owner. This situation often results in the accidental deletion of real friends, leading to refriending requests.
John: What's this friend request? I thought we were already friends...

Dave: Sorry dude, I went into a defriending frenzy last night and accidentally deleted you
by W_L August 30, 2010