Thunder mug is a slang term for a chamber pot. It's a basic vessel used for collecting urine and feces while indoors, especially during the night or in places without indoor plumbing. Alternate slang terms for "thunder mug" include "potty," "chamber pot," "commode," "urinal," "loo," and "toilet." These terms are still widely used today, particularly in regions with limited access to modern sanitation systems. In modern times, more polite alternatives have become popular, such as "bathroom," "restroom," "lavatory," and "WC" (water closet). While the popularity of chamber pots may have waned in many parts of the world, it still serves as a reminder of a bygone era and a useful tool for all types of emergencies.