When an individual is excessively disrespectful, out-of-line, or shows a flippant and utter disregard for others or an individual and gets a Miller Lite poured over their head in front of a group of onlookers as a form of public humiliation and/or to instigate a physical confrontation.
"Man, I can't believe that random guy just walked up and said that to her for no reason. He totally deserved that Miller Lite Shower she gave him."
"I gave that punk a Miller Lite Shower and told him it was go time. I can't believe to backed down after acting so tough."