Witblits is a potent, home-distilled alcohol here in South Africa. The name means “white lightning” and it’s pretty accurate. The stuff is extremely potent, with alcohol contents in the area of 40%-64%. Though I’m pretty sure I’ve seen bottles with much higher content. I know people will immediately want to call it moonshine, but witblits is particular to the Cape area (where we live) and is made from grapes grown here. There’s another variant called mampoer, which is made from different types of fruits.
I suppose this is obvious, but in case you missed it: Reka is offering Noah some of the witblits so that he can steel his nerves against the pain of having sutures done on his eyebrow. I’m not sure how a sabre cat would drink from that tiny glass, though. The rest of the tot will be used to disinfect his wound, and I suppose some of the witblits stash gets used in The Longboat’s cooking, too. Multifunctional and efficient!