It is a makeshift Vaporizer that consists of a normal bong and a blow dryer (hair dryer).
You pack your substance into the bong like normal, but instead of using a lighter, you use the blow dryer to "vaporize" the substance.
This is normally used when a stoner watches Manswers and realizes that the best way to get high is through vaporizer, but is to broke for a real vaporizer.
My, Stoner Vaporizer rips like a beat... I was as higher then i have ever been!!