Since McDonald's changed its dollar menu, the McBastard is the illegitimate bastard offspring of the McGangBang. The McBatsrd consists of a Grilled Onion Cheddar Burger smooshed with a BuffaloRanch McChicken.
"Jesus this McBastard is a delicious new chimera of patheitc American psudo-food!"
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.