To throw a temper tantrum when things don't go your way.
John McEnroe would throw the biggest tantrums in the world of tennis. They were amazing to watch. They would evolve and grow like fine wine. He was the master and inventor if the McEnroe Move.
Gina pulled a McEnroe Move when she didn't get the big promotion. She started throwing things around her office.
Johnson didn't agree with the unsportsmanlike conduct call and spit at the referee. Total McEnroe Move.
12 step recovery jargon referring to someone new who talks about how great life is, now that they'resober. Usually meaning that the person is out of touch with reality.
The new guy seems pretty happy for a dude who has no job, no money and no family. He must be on a pink cloud.