Brown-brown

Such bartering in exchange for securing routes is not uncommon; the Revolutionary United Front (RUF) fighters in Sierra Leone regularly consumed crack cocaine and brown-brown (heroin) that were transshipped through their territories.

Source: wiktionary

Only later in the afternoon, when the rebels ordered the child soldiers to kill did they carve slits into the boys' young temples, pierce holes into their tender veins, and rub cocaine and “brown-brown” heroin into their raw wounds.

Source: wiktionary

During this time, Aminata was often sent into Freetown to buy drugs—mostly a crude form of heroin (“brown brown”) and some cocaine—to bring back to the fighters.

Source: wiktionary

In Liberia and Sierra Leone, child soldiers often take a substance called “brown-brown,” a potent mixture of cocaine or heroin with gunpowder.

Source: wiktionary