Are You A Nuclear Reactor Before Caffeine? If you need to drop the F-Bomb but fear the wrath of a nearby boss, mother, or nun, then you need Caliber Gourmet’s F-Bomb Mug. It gets the point across with a mouthful of coffee, not soap. Great for anyone with a potty-mouth or short fuse. This Mug Is The F’in Bomb The F-Bomb Mug is perfect for the home or office. High quality ceramic construction. Holds 16 oz. of your favorite beverage.