Gravity bong
![An example bucket bong.](/Images/godic/202501/16/Buckie1038.JPG")
![Bucket bong in operation](/Images/godic/202501/16/Bucket_bong_diagram1038.jpg")
![World laws governing the recreational/spiritual use of cannabis](/Images/godic/202501/16/Cannabis_laws.svg1039.png")
A gravity bong is a method of consuming smokable substances such as cannabis. The term describes both a bucket bong and a waterfall bong, since both use air pressure and water to develop smoke. The waterfall method of smoking is common all over the world.