a variation of the nub, more closely related to the nubcake, The nubcake are typically inexperienced or ineffective player on an online game. The nublette is a delicious food for more experienced players.
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.