“Demobrat” (Democrat + brat) is a slang name for the Democrat party, used by speakers who believe that Democrats act like brats. The term “Demobrat” dates to at least 1990.
   
 
Urban Dictionary
Demobrat
A Demobrat is a wanna be anarchist that likes to bash our government and countries values, even though they’re upper class kids living on Mommy and Daddies money. They’re at the top of the worlds food chain and the main drain of it’s resourses but take no responsibility for their own actions and blame everything on the government, USA,conservatives and Christians.
Demobrat: Those frikin neocon Christians have screwed this world up! I’m go’in to the Greenday concert to protest with them. Where’s my Dads credit card?
by JD Jan 31, 2005
 
Air Farce One’s Lefty Lexicon
GLOSSARY OF LIBERAL TERMS
(...)
Demobrats  AKA Nee-Jerk Liberals. 
   
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From: .(JavaScript must be enabled to view this email address) (Doug Linder)
Date: 2 Mar 90 10:34:47 GMT
Local: Fri, Mar 2 1990 4:34 am
Subject: Yet another plug for aa (was: Re: how do you deal with fundies)
 
If you don’t agree with the politics of AA, I say to you: so what?  After all, most of you are probably members of a political party, say either Republiscam or Demobrat.
   
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From: .(JavaScript must be enabled to view this email address) (Ben Delisle)
Date: 25 Mar 92 07:34:56 GMT
Local: Wed, Mar 25 1992 1:34 am
Subject: Re: Proposed Bad Health Legislation (H.R. 2597/3642)
 
Dump the Demobrats and Republicants, vote Libertarian or Indepentent.
   
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From: .(JavaScript must be enabled to view this email address) (Ben Delisle)
Date: 10 Aug 92 02:19:00 GMT
Subject: Keeping vitamins legal
 
HR. 3642 vote in committe was apparently split along party lines, the Demobrats voting FOR
   
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From: Darth Sidious

Date: 1999/09/27
Subject: Re: Clinton Clutches Americans Money, Yelling “ITS MINE! ALL MINE!”
 
The demobrats want the money to spend on more and more social programs to help noneone. They want MORE layers of beauracracy. Money is allocated to roads and education. The demobrats feel more money is needed to create programs to wipe everones ass!
     
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From: .(JavaScript must be enabled to view this email address) (Diceman)
Date: 2000/11/17
Subject: WHAT’s so funny is…........
 
The hilarious thing is…that if the situation were exactly reversed, and Ms. Harris was attempting to certify the election with Gore 300 votes ahead, you Demobrats would be hailing her as a “model of virtue”- “a courageous public servant who’s only following the letter of the law” ......