Brown Hairing 

Plucking ones ass hair out and placing it on a friend/enemies personal effect, such as a computer keyboard or coffee cup for later discovery. Similar to tea bagging but slightly more pungent.

Garfield was being an ass so I gave his computer mouse a brown hairing.

Brown Hairing by MrPrefect October 5, 2005

brown fax 

to defecate. to take a shit.

dude, i gotta let you go, i gotta send a brown fax.

brown fax by fabval October 30, 2006

Brown Meat 

Particularly dark coloured flesh on the labia or penis of an otherwise much whiter person.

She was a ginger, you know with the whitest skin and cutest little pink nipples, but when I got down there - fuck me: Brown meat flappage!!! Totally unexpected...

Brown Meat by spunk_sock June 28, 2008

brown kitten-stamp 

Also known as a "brown cat-stamp," this phrase refers to when a friend (or enemy) presses a cat's butt-hole on another person's clothes or skin.

Alan was disgusted when Mr. Niersen scooped up his kitten, and pressed her exposed kitten-anus against Alan's skin, leaving a cat-butt smell behind. Mr. Niersen had given Alan a brown kitten-stamp.

brown kitten-stamp by al and sean September 9, 2010

Brown River 

The brown stream of water that runs between your legs to the drain in the shower,while cleaning your asshole.

Jimmy created quite a large brown river in the shower when he scrubbed his ass.

Brown River by Stains and Smears February 12, 2015

Brown Owl 

A particularly fast and aggressive bowel movement. One that takes the victim by surprise, making them hoot not unlike the common barn owl.

"By the sounds of it, Dave was having a brown owl"

Brown Owl by MRTOBES August 24, 2009

Brown Stamp 

To place ones buttocks on a glass surface (window) and proceed to spread ones cheeks - squeezing out enough of a log to effectively "stamp" the glass with your stinky seal.

Peter left a brown stamp on his boss's office window

Brown Stamp by Joe Joe 34 July 7, 2007