the most delicious food that you will ever eat. its addictive quality leaves you craving its chocolate smooth texture forever. it has a dense rich texture of milky chocolate with a thick rich chocolaty frosting with yummy sprinkles. although it is probably on of the most unhealthy things you could possibly ingest, it is completely. worth. it.
Bob: dude, these brownies are so good
10 minutes later
Bob: holy shit im going to puke, im never having a cosmic brownie again.
10 minutes later
Bob: dude those brownies were so good. im getting more.
10 minutes later
Bob: holy shit im going to puke, im never having a cosmic brownie again.
10 minutes later
Bob: dude those brownies were so good. im getting more.
by cosmicbrownielover July 21, 2011

by Cyruspeppercorn February 11, 2018

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

Clearly a cosmic brownie is a pot brownie that makes you so high that your flying through the cosmos. Hence the term (cosmic brownie)
by Daysthenamielover September 13, 2017

When you shit on your partners back in a square shape. Then blow your frosting in the top and drag your sack until it’s blended in to a chocolate colored cream. Then add sprinkles on top.
I was fucking sherry while watching the football draft it accidentally slipped in her ass so I had her suck it off to try to get the piece of corn out of the top of my dick. She asked if that was just in my ass. So I got the Instant urge to shit so I rolled her over and shit on her back in a cosmic brownie and continued fucking.
by Hairbrush901 November 26, 2020

by JK47. August 18, 2007

by Keaton MW. Boltz February 19, 2021
