mountain dew

noun2

1. •
   (Ireland, Southern-US) Illegally distilled whiskey.

   • […] and a big-bellied bottle of old whiskey — for there is nothing like mountain-dew taken internally for resisting the effects of night mists. — 1837
2. •
   Illegally distilled rum.

noun1

1. •
   A brand of citrus-flavored, carbonated, heavily caffeinated beverage.

   • In 1985 a Mountain Dew commercial started popping up on TV .... — 2003