look up any word, like darude - sandstorm:
 
1.
Medical lingo spoken by EMS and emergency room personnel to denote a patient who is incontinent of feces. Used in the presence of family or other persons who don't want to hear, "He's shat himself."
"Glove up before you unwrap this chud, he's code brown.
by Crawlover July 03, 2004
 
2.
The most critical point of needing to take a big shit. When one is on the verge of shitting in one's pants.
"Oh my God, I have to get to a toilet quick, I have a Code Brown!!"
by Kevin Graham December 04, 2003
 
3.
medical terminology: Xray examination of the large intestine (i.e. for polyps) may require the dreaded double threat 'double contrast' barium/ air enema, in which the cleansed colon is rinsed with barium and then inflated with air like a balloon - if the patient is unable to maintain compression of the sphincter to retain the catheter/ split valve/ inflatable buttplug used to supply the barium/ air AND to stopper the anus, and thus sprays a mixture of air, barium and fecal matter under pressure from their anus (under pressure - remember the intestine is inflated with air), it may be known as a 'code brown'. this is one of many reasons Xray techs wear shoe covers.
the patient blew a code brown, and housekeeping spent the rest of the day scrubbing fecal matter out of the light fixture with a small toothbrush
by stendhalismo April 28, 2005
 
4.
Warning that fecal matter is now present in a body of water, and leaving the area would be highly recommended or mandatory. Mostly used in public pools, hot tubs, or bathtubs when bathing small children.
Maria: "Hey Kerry...you back from the pool so soon?"
Kerry: "Yeah" (sigh), "can't swim until tomorrow...my daughter found a turd in the shallow end and the lifeguard called a Code Brown."
by citiz3n February 15, 2010
 
5.
The moment you realize that precious time is a wasting before you poop yourself.
I was in a meeting and suddenly code brown arose, needless to say I ran to the bathroom like a sprinter and made a fast and furious platter of brownies.
by humphreyj January 15, 2009
 
6.
*the deuce/#2 being "unflushable" in a toilet
(Person quickly leaving the restroom after finding a plugged 2)"Code brown,code brown, now who's turn is it." (to clean it up)
by steve31 January 14, 2008
 
7.
Intending to pass gas, but defecating in one's underpants instead.
Oops, he ran to the men's room 'cause I think he's got a Code Brown in progress!
by ~Bloopenguin~ January 02, 2007