befriendster 

To ask someone or accept someone as your Friendster on the web site friendster.com

"We need to find a shy boy with nice hair and befriendster him."

befriendster by Paulina July 30, 2003

defriendsterate 

(verb) - to remove someone from your friends list on a social networking site. it is a play on the words 'friendster' and 'defenestrate' (to throw out a window)

Man I cannot believe that shit JP pulled at the bar. I defriendsterated him as soon as I got home.

defriendsterate by aaronfrancis February 8, 2010