A typical Junkaholic is when a person spends all of their spare time going to flea markets, yard/garage sales, shopping malls, thrift stores, online sites, endlessly searching and buying items of interest.
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.