A person's anus and rectum, or 'asshole' to put it bluntly.
"He takes it up the brown."
by SomeGuy2 June 08, 2005
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Brown-brown is a form of powdered cocaine, cut with powder from gun cartridges. Commonly given to child soldiers in West African armed conflicts,1 the drug gained notoriety after it was used by Nicolas Cage's character, Yuri Orlov, in the 2005 film Lord of War
by knowing is everything April 20, 2010
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An amazing concoction consisting of high-grade cocaine and gun powder that causes people to go nuts.
Brett was having a fairly boring evening until he hit up the brown brown and killed someone.
by The Gleason April 20, 2006
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Dual lines of gunpowder and cocaine. The gunpowder actually has no effect other than pain and any dillusional experiences are purely placebo induced.

Its given to child soldiers in fucked up countries of africa prior to battle.
snap outta it dude brown brown is just placebo

dammit dude why did u tell me that now im of my high
by shitterwasfull October 28, 2006
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A term used in whitewater kayaking, particularly in high volume spring flows when the water turns brown.

Synonymous with "the shit", i.e. running the shit/running the brown.

Origin : Demshitz and Sacha Baron Cohen. Demshits says "gonna run the brown" along with a hand motion which Borat does at etiquette training for a dinner party. This hand motion is universally understood in the whitewater kayak community, known as the "brown claw".
Yo dude, the Blanche river is running threat level right now, lets go run the brown!!!
by Crash0826 December 17, 2014
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