The act of becoming aware of the great loss of a person after they die who you only wished you had loved and appreciated more when they were alive. You've been hit by the Michael Jackson "lightning bolt" which causes you to start Michael Jacksoning, e.g., you watch nothing but Michael Jackson videos on YouTube, you buy all the books by authentic authors about Michael Jackson, you become a better person by treating everyone kindly and giving to others in need because of the influence of Michael Jackson, etc.
"There's an old saying that you don't miss the water until the well goes dry. When Michael Jackson
died on June 25, 2009, the world was in a state of shock, so everyone started Michael Jacksoning."