Rocky Mountain Dew Share definition Flag An alcoholic soda beverage, containing several cubes of ice, 5-6% Vodka, and the rest with good ol' Mountain Dew. My friends and I wanted some soda with a little kick to it, so I made us some Rocky Mountain Dew. Rocky Mountain Dew by REhill92 June 5, 2013 0 0 Get merch Get the Rocky Mountain Dew mug. Buy Now — $32.95 See more merch