In a large skillet over medium heat, add oil. When it gets hot, add ground beef and pork. Cook until brown; season with freshly ground black pepper.
Drain the meat in a colander and set aside.
Return the skillet to the stove top and add onion. Sauté until almost translucent, about 3 minutes.
Add red peppers, orange peppers and poblano peppers; cook for 3 minutes.
Transfer the drained meat to the slow cooker and add the pepper mixture; stir to combine.
Add chili powder, cumin, chili powder, brown sugar, chipotle pepper in adobo sauce, Cholula®, Worcestershire sauce, smoked paprika, Mexican oregano, cocoa powder, cayenne pepper and beer; stir until well blended.
Add kidney beans, black beans, Prego®, green chilies, Roma tomatoes and garlic; stir to combine.
Cook on LOW for 6:30 hours or on HIGH for 3-4 hours.
Halfway through cooking, quickly stir the chili (*see footnote).
Serve with a dollop of sour cream, shredded cheese, chopped green onions and a lime wedge along with crusty bread.