Backside Brownie

To press against one another, anus to anus, while one person poops into the other's asshole.

Man I got so drunk last night, I don't remember shit! People are saying I gave this one chick a Backside Brownie!!!

by thewatermoccasin June 15, 2011

Cosmic Brownie

When colored marbles are shoved up your lovers butthole and then propmtly shit out resembling the Little Debbie snacks we love so much.

While having extramarital sex, I shoved marbles up by girlfriends ass and she shit on me, giving me a cosmic brownie.

by Wes Martin December 22, 2008

Slut Brownie

A brownie that's white on the inside, crispy on the outside, soft, and delicious. Some of it's chewy, some of it's hard, and all of it is sweet and delicious.

Man, I could really go for a slut brownie right now.

by loki352 September 15, 2016

Brownie Mix

The act of sticking your thumb up your butthole then subsequently inserting it in your partner's butthole. Both parties then lick the content of their own thumbs similar to when licking the brownie batter off a whisk.

My girlfriend and I had some brownie mix after our Chipotle date.
My partner and I used brownie mix to spice up our relationship.

by Browniemixlover69 August 8, 2021

sour-brownie

th ol' bung-hole, especially related to ATM-sex with a hot babe

Gertrude went wild when I tongue-punched her sour-brownie.

by Tchornibog January 1, 2015

breaking brownies

to fart, release gas.

sally: what's that fowl smell?
tom: sorry, the dog is breaking brownies.

by kei81 March 4, 2009

Community brownie

When you and your mates all have anal sex with a woman and suck each other’s dicks afterwards.

She was all up for the community brownie last night, and was the only one that didn’t need mouthwash afterwards.

by Dank_Dinghus December 2, 2019