a pitcher with a 2 or 1 1/2 liter bottle in it add water and uve got urself a geeb. best way and the only way to blaze good headi nug. also known as a gravity bong
In addition to it's use as a name for the weed smoking device, Gravity Bong. "Geeb" is also a street name for the drug gamma-Hydroxybutyric acid (GHB).