some niggas use water but others use some sort of booze which they drink after hitting it
Once the bong has been loaded the user wraps their lips around it and turns it upside down. Another person hooks up an air compressor to the carb and starts to inject air around 15 or 20 PSI (2 maple bar). The higher pressure forces the doughnuts down and out the tube. With carefully timed swallowing motions the doughnuts can be swallowed without choking.
A bong is typically purchased at a speciality store for consumers of cannabis known as a supermarket.
See also: vaporizer