That feeling of missing a moment of happiness that you know can not be replicated. The feeling of being incomplete while not living in that moment. It mimicks the feeling of being home sick but for a treasured memory.

v. collectively or individually finding someone/something to blame for a problem, as opposed to brainstorming which connotes finding solutions to a problem

n. the act of finding someone/something to blame for a problem

(from a TV ad for HD television)