A pairing/ship between Nagito Komaeda from Danganronpa 2: Goodbye Despair and Sans the skeleton from Undertale. The characters are both very memeable so people have decided to ship them together. Also they both have many fangirls.
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.