Lunch meat is slimy on outside?
The rate of slime of a piece of food has to do with amount of surface area it has. At each point a food's surface is an entry point for bacteria. Since there is always bacteria on any cutting utensil or machine every cut piece of meat has been seeded with a bacteria culture. Although it might not kill you or make you visibly sick, the slime is coming from microbes which will stress your immune system that might be fighting other things instead. Unless it's Nato beans or oysters slime on food is no good. If the cold cuts are sliming quickly it might be because the grocer is not cleaning the machine properly or somebody's refrigeration is not cold enough, 5 to 10 degree f too warm.