A run-down part of a town or city that is frequented by thugs and hoodlums. Best known for being the centre of the prostitution industry.
by Gumba Gumba February 23, 2004
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Historically, red light cast by a coloured glass lantern or lamp, was discovered by ancient Egyptians and Romans, to enhance the appearance of human skin complexion. A red light source will cause skin blemishes, freckles, blood vessels, rashes, bruising etc to disappear. Giving the skin a pure and more unblemished appearance.
The ancient prostitution industry soon took advantage of this business boosting optical illusion, installing red lamps in their working environments. As organised brothells developed, paying customers could more readily identify a working girl by the red lamp glow emitted from her window.
As brothell owners and prostitution demands became demographically focused because of common demand, eg areas of high trade, business premises became more concentrated and known as red light districts.
by Dizzy FPV March 3, 2018
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an area in Chicago, particularly along North Avenue, where the presence of the new security cameras to deter crime is noted by the blue lights that constantly flash to scare off would be criminals.
Dan: I wonder where we are...
Steve: See the cameras.... that means Blue Light district.
by Chicagoan November 1, 2006
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a place to go to find porn, hookers, renters, johns etc
by berty June 4, 2003
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Best place to go while visiting Amsterdam.
Retarded Tourist: okay dude, so first we're gonna visit Anne Frank's house, then we head to the Van Gogh museum...

Smart Tourist: wtf dawg, lets just go straight to the Red Light District ! Imma smoke a joint there and fuck sum hos while your havin fun at yo' "museums"
by lukas84 October 28, 2008
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An area of a city or town that is mostly where one would find gay bars or bath houses and gay men and women cruising for sex. It is also often a high crime & drug sale & illicit use area.
My friend Swinehund got a job as the hot towel boi over in the blue light district, at that new gay bath house.
by matlock1 December 9, 2012
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