The term GROG BASE is a combination of two words, 'GROG' and 'BASE'. GROG is an alcoholic beverage made from RUM, water, and sugar, while BASE refers to the main ingredient in a drink. Therefore, the term GROG BASE can be used to refer to RUM, which is the main ingredient in GROG. RUM is a distilled alcoholic beverage made from sugarcane byproducts, such as molasses or sugarcane juice, and is usually aged in oak barrels. It is popular in many Caribbean countries and is often used in mixed drinks and cocktails.