An alcoholic liquor, especially rum diluted with water.
An alcoholic liquor, esp. rum, diluted with water.
Any alcoholic liquor.
Origin of grog
- After Old Grog , nickname of Edward Vernon (1684–1757), British admiral who ordered that diluted rum be served to his sailors from grogram (from his habit of wearing a grogram cloak)
From American Heritage Dictionary of the English Language, 5th Edition
- An allusion to Admiral Edward Vernon (nicknamed "Old Grog" after the grogram coat he habitually wore), who in 1740 ordered his sailors' rum to be watered down.Also claimed is:From Catalan, groc (yellow), the colour of the low-quality alcohol.