Now, most think it is simply a lazy ryme, but it's much more deep than that. Being "single like a Pringle" means you don't want to be single. Everyone is ment to be together, or at least in groups, and your alone. No one loves you. Hell, who the fuck would buy a can of Pringles if it only had one Pringle? Wich means your destiny is to be thrown away and eaten by rodents or a homeless person. Your pathetic and worthless. No one will ever want you. Ever. No one would even blink if you died you discusting Pringle.
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.