Mix all of the dry ingredients in a small bowl until well combined. Gently rub over the entire surface of the pork butt. Place in a dish and cover with plastic wrap. Store in the fridge overnight.
Prep your smoker with hickory or pecan wood according to the manufacturer's directions. Set heat at 225 - 250 degrees. Place the pork butt directly on the shelf of the smoker attaching a meat thermometer if desired. Use the beer and leftover coffee in the water tray, refilling as needed.
The pork but will need to cook approximately 1.5 hours/pound at 225-250 degrees. When finished a 30-minute rest period is recommended before serving.