An affectionate term used by Angela Rayner in the House of Commons to discribe Chris Clarkson MP (Tory). As such it is both factual and friendly in a limited and precise way: being limited to a Tory MP or Political advisor
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.