Code for I’m gay/lesbian, homosexual greeting originating during the 1960s, not used frequently today, it was used because it sounds like a normal greeting, and was non suspicious only those in the community new it’s hidden implications, this phrase is actually referenced in the movie Dr. Strangelove (How I Learned to Stop Worrying and Love the Bomb) as it is pictured on one the missiles, it is shown beside a missile which says Dear John a reference to WWII break up letters
12 step recovery jargon referring to someone new who talks about how great life is, now that they're sober. 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.