Adding someone to your social media network just so you can enjoy the bad things that have happened or are happening to him or her.
"Do you remember the snotty girl who used to make fun of you? I heard through the grapevine that she had three kids by different guys and is currently dating another loser. I'm schadenfriending her today on Facebook so I can see her karmic smackdown."
by Professor Ninja August 10, 2012
A friend who is obviously inferior to you in every way and you keep to lift your self esteem. Portmanteau of schadenfruede and friend.
by dreidel_nose_bumann October 10, 2010