A way to tell uniformed officers to stay away from a particular area.
Person 1: We're sending in the unmarked cars, code 5.

Person 2: Roger that.
by Solja May 7, 2006
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A discreet way to mention to your friend that there is a black person amongst and to warn them not to say nigga/nigger
by jimmy thomas December 25, 2007
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the oven at Subway
Hey, that's the timer, we've got a code 5!
by stevie September 13, 2003
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A discreet way to report that you have clogged the toilet in a hotel with a big log or underling.
Engineering will be up there shortly to take care of your Code 5.
by Reinier August 21, 2003
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