A water bottle that is used to hydrate oneself and prevent hangovers throughout steps 1-4 of the 5 drunk Shronin stages.
Drunk Stages include
1) Quick drinking and heavy laughing
2) Apologize to everyone for everything even if no wrong doing is committed
3) Wandering to find the closest stash of weed
5) Playing Golf Drinking game super shitfaced alone with passed out roommate
Also can refer to the owner of the Shronin
Kristin drinks Shronin all night while drunk