Sewer Brewer Share definition Flag The act of putting your face inbetween someones buttcheeks and thrashing back and forth.Basically a motorboat but on someones anus. Man: Hey Charlene do you wanna do the sewer brewerWoman: Ye come eat my ass. Sewer Brewer by Ediak December 27, 2018 Get the Sewer Brewer mug.