To defriend someone on facebook on their birthday when you don't care to wish them a happy birthday.
"I just pulled a birthday defriend. He totally won't notice since he'll be so distracted by all the 'happy birthday!' comments posted on his wall."
by its_just_easier January 30, 2012
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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?!!"
by qaballer April 29, 2013
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adj. Someone who, with the SLIGHTEST provocation, defriends someone on facebook, myspace, etc.
Josh: "Soc, why did you defriend me on Facebook?"
Soc: "I didn't like that you had a dream about my sister. Plus, I heard you didn't like my tie."
Josh: "Wow, you're more fucked up than i thought. You're really defriend-happy if those were your reasons."
by stockman09 January 22, 2011
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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
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When the ex-boyfriend or ex-girlfriend of a friend defriends you after they break up.
- So and so defriended me on Facebook. What did I do wrong? I know they broke up and we weren't really friends, but still, collateral defriending hurts.
by TOHITF April 16, 2011
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Requesting to become friends with a person on Facebook who has defriended you in the past in order to defriend them as soon as they accept your request.
I noticed Kimmy defriended me. So I waited a couple weeks, requested to be friends, and when she accepted I gave her the Defriend Shuffle.
by NickyPants February 11, 2011
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The act of defriending someone on social networking sites, that your signifigant other or spouse does not like.
Girl: "Cara is a total bitch to me!"

Guy: "Yeah, I know."

Girl: "Get on facebook and defriend my honor!"
by Poeborgia July 27, 2011
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