Caspian Sun Share definition Flag A tasty alcoholic beverage containing 1 part vodka and 3 parts Capri Sun. We drank Caspian Suns all weekend, so I had to pack Red Bulls in the kids' lunchboxes. Caspian Sun by cursors October 19, 2020 0 0 Get merch Get the Caspian Sun mug. Buy Now — $32.95 See more merch