A drink, invented at Princeton University by a priscologist, that looks remarkably similar to janitor water with its greenish hue. Such a concoction involves filling 1/5 of the glass with root beer, 3/5 with blue Powerade, and 1/5 with Sprite.
Joe: Hey, I'm going to grab some drinks, anyone want anything?
Bob: Yea, I'll get a janitor water. Thanks.
Girl: Ewwww, what is that? Why would you drink that?
Guy: It's called janitor water, it's too manly for you.