Inhaling the vapor from a heated solution of morphine, heroin, oxycodone, opium, or ya ba
"Chasing the dragon" (CTD), or "foily" in Australian English, refers to inhaling the vapor of a powdered psychoactive drug off a heated sheet of aluminium foil. The moving vapor is chased after with a tube (often rolled foil) through which the user inhales. The "chasing" occurs as the user gingerly keeps the liquid moving in order to keep it from overheating and burning up too quickly, on a heat c... Wikipedia