Facebook karma 

When somebody mentions one of their friends on their facebook page praising them or saying how good their friendship is, then for no reason just deletes it, insulting and upsetting their friend. Consequently something bad happens to them or they get bad luck. A cyber version of "what goes around comes around".

Girl: That boy that I've fancied for ages told me he didn't want to go out with me.
Girl's friend: Well you know why that was, because you replaced the thing in the little box on your facebook saying "Kate and Jenny BFFs" for a film quote. It's facebook karma!

Facebook karma by facebookkarma July 8, 2009

FaceBook karma 

The kick you get when something you did, wrote, achieved, suffered, posted on FaceBook earns you that "47 people liked this" note above your message.

Bill was surprised that 148 people sent him get-well messages when he broke his leg. Talk about FaceBook karma!

FaceBook karma by lerici44 August 13, 2012

Facebook Karma 

When you comment on a Facebook post because you don't like what was said, and Facebook's algorithm thinks your interested in seeing more of that topic - so inundates you with posts about it.

Facebook Karma hits you in the face when you type a comment "I definitely don't agree" with regards to a post on gay marriage rights. Facebook sees your posts and starts showing you more posts about gay marriage.

Facebook Karma by LivLongandProsper March 28, 2015