Figi flavored water, Smartwater flavored water, or perhaps, Dasani flavored water? Maybe you are an Ozarka or Aquafina kinda bull? Or goddess forbid, you drink stale, stagnant lake water?
The invisible dragon was a dragon that was invisible. It was known as the invisible dragon because you couldn't see it. That's what being invisible meant. No on could see the invisible dragon. It was invisible.