/grɒg; ˇrɑˇ/
n [U] (nautical or infml 海或口) drink of spirits (esp rum) mixed with water 烈酒（尤指朗姆酒）与水混合的饮料.

n[U]
[Date: 1700-1800; Origin: Old Grog, a name given (because he wore a coat of grogram, a type of rough cloth) to Edward Vernon, the 18th-century British navy officer who started the practice of giving sailors rum and water to drink]
a strong alcoholic drink, especially rum mixed with water
informal any alcoholic drink