The Griddy is a dance usually used after a touchdown in football. When you jog move your hands back and forth from your front and back. Eventually, you will put an, "OK" sign over your eyes for about two seconds. and keep jogging.
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.