Zombie Bacon is an incredibly delicious meat product made from zombified pork. Zombies cannot resist the succulent taste of Zombie Bacon, so it makes an excellent form of distraction or bait when dealing with zombies.
Unfortunately, anyone who is not a zombie who eats Zombie Bacon will become one. The only way to purify Zombie Bacon is with Old Spice. The Old Spice removes all of the zombie-ness from the bacon, but the bacon itself becomes even tastier.