GP was just distinguishing behind two kinds of bad luck - getting "cold decked" is being set up, where you're going to lose a massive pot no matter what because

GP was just distinguishing behind two kinds of bad luck - getting "cold decked" is being set up, where you're going to lose a massive pot no matter what because you get a huge hand when someone else has a better one. More garden variety bad luck would be, say, losing your 50/50 coinflip situations repeatedly.