To smoke cannabis in a drop pipe.
Similar to a water bong but with no gauze. Tobacco is wedged in the pipe before the cannabis is added. This is burnt and inhaled in one breath, and as it shrinks the ash is sucked down into the water in a final 'pop'.
Popping toots get you the most stoned out of all ways there are in the world, fact.

When you eat dirt for the first time and leave your family to build a shack in the woods