1 definition by I_Need(ed)_Help

Top Definition
A crudely refined form of heroin used mainly in the western united states due to its accessibility through the mexican border. Usually very hard but prone to break up much like sandstone, but becomes moist and very sticky when heated to around eighty degrees fahrenheit. Usually smoked off of tin foil but can be mixed with other smokables such as tobacco or weed. Can be injected but due to its gummy texture can cause immense damage to veins, not to mention diseases it is exposed to during its refining process. Smoking can cause mild shaking in the hands, itchiness, and unpredictable vomiting.
John vomited all over himself and his girlfriend after smoking some black tar.
by I_Need(ed)_Help October 07, 2008

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