String Dope means: Flash dope is a form of methamphetamine. It requires very little cooking skill. String Dope can be prepared using gun bluing and activated charcoal. The methamphetamines grow on unwaxed strings, like stalactites, for between 14 to 31 days. This particular type was named after the fact that junkies would often find pieces of string while breaking down their drug with a spoon or bottle cap. String Dope has a half life of approximately 5-7 days once it is exposed to ultraviolet light. (in Community Dictionary, added by Susan Caldwell)