An otherwise dull and uninteresting person who freely share cocaine with people free of any sexual expectation or subtext.
He's described as a "Really Cool Guy" at the party but beyond the fact that he carries cocaine around just to get attention he is really not very interesting at all.
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.