A bong is a kind of water pipe used for smoking a wide variety of substances, most frequently cannabis. A bowl to hold the smoking material, a downstem to direct smoke into the water, a mouthpiece to inhale smoke through, and a vertical chamber with water within are the common features. After lighting the smoking material, the user inhales the smoke via the mouthpiece and into the water, which cools and filters it before it enters their lungs. Smoke produced using this approach is meant to be smoother and less irritating to the throat than smoke produced using other methods. Although bongs vary widely in size, shape, and design, they all work by filtering and cooling smoke with water. Fore more information about what is bong at weedlifestyles. https://www.weedlifestyles.com/blog/what-is-a-bong