From Wiktionary, the free dictionary
Calque of Mandarin 雄黃酒 / 雄黄酒 (xiónghuángjiǔ), 雄黄酒 (xiónghuángjiǔ, literally “realgar liquor”).
realgar wine (uncountable)
- A Chinese rice liquor mixed with realgar (arsenic sulfide), traditionally consumed during the Dragon Boat Festival.
