Honey oil (often shortene to oil, and sometimes referred to as BHO, or butane hash oil, which is particular to the method by which it is made) is an essential oil that has a viscosity ranging from thick to runny, extracted from the cannabis plant. It is commonly smoked using hot metal blades or plates, inhaled using specially designed vaporizers, or smoked from a bed of ashes. Honey oil is considerably more potent than cannabis itself, due to its extreme purity and lack of other vegetative matter.