friend purge 

rid of (delete) unwanted friends/acquaintances on online social networks, typically giving a sense of cathartic release.

I just had to do a friend purge on facebook. I don't like that many people.

friend purge by Fredo|Fredi January 13, 2009

Facebook Friend Request Binge and Purge 

Facebook Friend Binge: The act of sending many requests, at one time, to be friends with random individuals on facebook; adding people you wish to creep or learn more on.

Facebook Friend Purge: The act of deleting friends off of your friend list due to their incessant status' or knowing you will never see nor speak to the person ever again.

Ex. 1 Sarah: "Did you hear that Carolyn had a facebook friend purge recently?"

Eva: "Should I feel honored that I'm still on her list?"

Ex. 2 Chris: "I'm not proud; I facebook friend request binged last night."

Carolyn: "That's alright, at least they aren't calories. Facebook Friend Request Binge and Purge(s) happen to the best of us."

Facebook Friend Request Binge and Purge by musicallyfit848 December 25, 2009

friends list purge 

when you have so many people on a friends list that you do not know of and you get rid of them all at once

Jack had so many friends on facebook that he didnt care about so he did a friends list purge to clear up his newsfeed

friends list purge by alucardo1 December 8, 2011