A Buck cocktail typically combines ginger ale or ginger beer, citrus
and the spirit of your choice – originally whisky. The exact history of
this bourbon cocktail is a little difficult to trace, but the Buck is
believed to have gotten its name when someone added a kick (that is, a
shot of whisky) to the previously nonalcoholic “Horse’s Neck” (ginger
ale with lemon). Variations include the Horse’s Collar which uses
brandy, the Moscow Mule (vodka) and the Dark and Stormy (dark rum).
These all have their place, but the Buck that makes us most merry
includes Maker’s Mark.