de-friendectomy 

The act of cutting out the de-friending of a Facebook friend. In other words, adding someone back after they are removed from the friend list on someone's Facebook page.

Joe was de-friended?? no way! Bob needs to perform a Joe de-friendectomy, i.e. re-friend Joe now!

de-friendectomy by skibumdoc May 14, 2010

public defriender 

public defriender (noun): an individual who frequently and/or openly discusses removing people from their friends list in a self-righteous and attention-seeking manner.

"deleting some ppl from my fb who longer serve dey purpose. #realtalk"

"GODDDD why is she such a public defriender?!!"

public defriender by qaballer April 29, 2013

defriended 

when you remove a friend from a social networking site like facebook

After he got married, at his wife's urging, he defriended all of his exgirlfriends from his facebook profile.

That guy writes annoying notes in his facebook profile so I defriended him.

WTF did he defriend me?

defriended by scarpeta March 25, 2009

Defriender 

Defriender is a person who tries to break the friendships of other people, in a mean way. They do this because they have no friends and want people to feel their pain.

"What a Defriender. He is so mean"

Defriender by Bman111 November 30, 2016

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