Prune-tang is the 2nd to last stage for good looking women. They are over the age of 60 but still looking good and in shape. Way past cougar but not quite to Geri-tang which is an attractive women over the age of 75.
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.