Beer n brat Share definition Flag When you piss into a woman's/man's mouth and receive oral sex before the recipient swallows. Also known as a Milwaukee Beer N Brat. "I couldn't hold it, but no problem. She just gave me a beer n brat." Beer n brat by DPunch January 3, 2009 0 0 Get merch Get the Beer n brat mug. Buy Now — $32.95 See more merch