"Slab bacon" refers to thick, uncut slices of bacon taken from a whole pork belly, as opposed to the thinner, pre-sliced strips commonly found in grocery stores. Full definition
There's a knock at the door; staffers enter bearing a morning bounty of orange - brioche cinnamon rolls, braised slab bacon with local chanterelles, and a sparkling Bellini — all to enjoy without leaving your comfy mattress. (travelandleisure.com)
2» chunks of slab bacon seems crazy — not enough surface area for browning, way to big to eat. (epicurious.com)
Ask your butcher to cut slab bacon into thick slices (about 1/4») to yield nice meaty pieces once they're crisped on the grill. (bonappetit.com)