When two men are in 69 position, the man on top shits on the man on bottoms head. Also search for a sloppy jaben brown
by Demetriusdomiko May 29, 2019

When you suck a fart out of a someone's ass, hold your breath and then kiss them, releasing the fart gas into their mouth.
John: Bro Emma gave me a brown kiss last night it was so hot
James: Bro that's disgusting, get your mind checked
John: Nah bro don't kinkshame
James: Bro that's disgusting, get your mind checked
John: Nah bro don't kinkshame
by Lintowl July 24, 2020

Another term for ass-to-mouth sex. The penis is brown from anal sex and then is presented (served) to the partner's mouth.
by Joey Paisan January 5, 2008

by Gym-bo December 28, 2015

Adam: "Hey Josh, that fart sounded so loud just now. That is not appropriate for work"
Josh: "Not only is it not appropriate, I think it was a Brown Boxer too....I gotta go!"
Josh: "Not only is it not appropriate, I think it was a Brown Boxer too....I gotta go!"
by Cheezedadadada November 6, 2010

When after you have had a satisfying bowel movement and you notice you've given birth to a legendary turd...you take multiple pictures of your masterpiece and feel extreme sadness as you flush...henceforth a "brown baby"
"Tom fell into a horrible depressed state after flushing his payload, stating that had given birth to a brown baby..."
by Fasteddie666 March 12, 2021

by pepesucc January 2, 2019
