What is "brown-brown"

Brown-brown is a form of powdered cocaine mixed with smokeless gunpowder (not " black powder"). Smokeless powder often contains nitroglycerin, a drug prescribed for heart conditions, which most likely causes vasodilation, permitting the cocaine to move more freely through the body. This, in turn, allows for a more intense high. The term may also refer to heroin. Brown-brown is reportedly given to child soldiers in West African armed conflicts. One former child soldier, Michel Chikwanine, has written about the experience of being captured at the age of five by rebel fighters in the Democratic Republic of Congo, including being given brown-brown.