A refference to a regiment in the Sweden nation within the Europa Invicta community. Notorious for massive amounts of trolling, the phrase has been used in reaction of mess-ups or messing around.
Someone who uses facebook status updates to forever moan about other people. Such a person is for some reason angry with the world, and feels the need to complain about people to facebook.
Chris, stop being a facebook moaner, get a life and stop watching everyone else's.