Hogging; banging a fat chick. Putting on beer goggles to be a chubby chaser and bag a fat bitch. Being a chocolatier and having sex with a lardass. Fat bagging is the same as nail the whale. To screw a plumper, perhaps as a slumpbuster.
Pat really wanted a piece of ass last night so he went fat bagging and shagged a chubbette. She was quite an eater, very hoggy, and therefore he was the butt of many a joke the next morning because he got fat bitched, and that added to his fatty remorse despite the fact that he had really enjoyed that buffet blimp's big tits.