n. On a social networking site, a person whose friend request you accept out of pity.
2011
Consider paring down your Facebook friends to ensure that personalized search results are as relevant as possible. (No more pity friend accepts!)
2009
Do you hate Facebook's new design? Do you find the home page too noisy, with important updates from your friends getting buried under a stream of banal comments from high-school classmates and other people you pity-friended?
2006 (earliest)
two weeks later, i now have two friends on facebook (the other one is scott, who made me a pity friend).