illicitly brewed liquor; moonshine
Refers to alcohol produced illegally, often to evade taxes or regulations. The term is neutral in register but describes an illegal product.
The police busted a group that was making moonshine deep in the mountains.
In this region, illicitly brewed liquor is causing health problems.
Compound of 密造 (illicit manufacturing) and 酒 (alcohol). The exact historical derivation is uncertain, but the term straightforwardly describes illegally produced liquor.