It's some kind of mythical omni-drink called LOVECRAFT. Probably in reference to regrettable universal constant HENTAI PROFESSIONAL LOVECRAFT. Not exactly what you would call being in good taste — the guy was/is an overrated mooch on top of other things — but speaking strictly in terms of flavor, it does/doesn't have any/all to begin/end with.
Whenever you take a swig, you feel nothing/everything cascade over you, all at once. You can handle it, though. The stuff just goes right through you.
You've had better/worse.