From Longman Dictionary of Contemporary Englishgroggrog /ɡrɒɡ $ ɡrɑːɡ/ noun [uncountable] 1 DFDa strong alcoholic drink, especially rum mixed with water2 informalDFD any alcoholic drink
Examples from the Corpus
grog• Small fragments of pot are also added-known as grog.• The material which can be identified with some confidence as having been added deliberately is grog.• His frantic re-reading of Dickens had revealed numerous mentions of grog.Origin grog (1700-1800) 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 