Commercial brewers and homebrewers alike employ experimental and traditional brewing techniques to get their craft beer just right. One of those techniques is Krausening, a traditional German approach that eschews adding any sugars or extras to the fermented beer, with the goal of producing a "cleaner" beer. In summary, and ultimate effect, to kräusen a beer is to add carbonation to it.
Wayne, Katy Kat, Dary, and Squirrely Dan drink Puppers, and now you can too.
Shower beers aren't just for pre-gaming college kids and dude bros. Naw, the truth is that showering with a beer has existed for a long, long time.