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3.
The most delightful beer in the world. Can be anything from Pabst to Guiness, but must be consumed within the shower and while the shower is on.
I woke up with a mad hangover this morning, but after that shower beer I have a nice buzz on.
by hauckanizer March 14, 2008
 
1.
The beer you take into the shower when you're in a hurry to go out and still need to get cleaned up, or want to relax from a long day.
Guy 1: Hey man, get going! We've got to leave in 20 minutes and you haven't even hit the shower yet!
Guy 2: I'm going, I'm going.. I haven't even started pre-gaming yet, what am I going to do?
Guy 1: No worries, I've got your solution. Take a shower beer.

Awesome Girlfriend: Hi honey, how was work?
Tired Boyfriend: It was stressful, my boss yelled at me and he wants me back in the office this weekend.
Awesome Girlfriend: Wow, what a day. Well don't worry, I'll start the shower and grab you a shower beer.
by Dustwel October 09, 2009
 
2.
An alcoholic beverage one consumes while cleansing himself/herself.
Before getting dressed, while pregaming, Wally economically uses his time to shower and booze at the same time consuming his "shower beer".
by Mel March 12, 2004