Vampire Survivors free cart-racing update finally answers one of the game's darkest mysteries

Unveiled last night at the IGN x ID@Xbox Digital Showcase, Vampire Survivors has received a free new update called Laborratory (yes, with two 'r's). It includes one new character, one secret character, three weapons, one stage, and a bonus go-cart racing stage. But perhaps most importantly of all, Poncle say they'll answer the question that's been on everyone's lips: "Why is it called Santa Water?". This is something that's puzzled me since the game's inception, and therefore, I will be thrusting myself back into the game where there are, in fact, no vampires at all. I need to know.