A contraption for smoking cannabis. Designed by combining the previously invented bong and shotgun devices by removing the burner from a bong and inserting the roach of a nicely coned joint into the end of the tube. If the subject is hard core enough it is possible for them to consume an entire splif in a single inhalation.
"I tanned a fat dube in one blast."
"Sir! Do you have the equiptment and facilities that I will require to create a functional shot-gong? Kindly show me to them and I will reward you with the premier hit..."
"The unfortunate fellow died of a shot-gong wound."