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The poop you have after you drink a bunch of coffee.
I sure enjoy it when I have to take a sludge.
by miss milk December 10, 2010
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Aug 8 Word of the Day
A method of guessing on a multiple choice test that involves looking at the position of the second hand. If the hand is between 12 and 3 the guess is A. If the hand is between 3 and 6 the guess is B. Between 6 and 9 guess C. Between 9 and 12 guess D.
I passed my test! Thanks to the Clock Method
by ET4444 November 12, 2007
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1. Solid waste that is trucked out of sewage treatment plants and delivered to farms as fertilizer.

2. diarrhea.
Who left a load of sludge in the crapper and forgot to flush?
by England phi beta gamma January 27, 2008
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A thick, soupy substance, usually foul in appearance and/or smell.
A filthy brown sludge ran down the walls of the public bathroom.
by BlastMaster May 20, 2003
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A low-life toxic personality who spreads their poison and contaminates the innocent. Sludge is human primordial ooze. Teenage girls often gravitate towards sludge. The sludge soon slimes all over them and the next thing they know the girl's hooked on crack. The trick out stage is next, where Mr. Sludge puts her on the street. She becomes a crack ho and he profits from the dual trade. Advice for dealing with sludge: run in the opposite direction or shoot on sight.
Antwan was a perfect example of sludge when he tricked Sally out.
by MsLi April 01, 2006
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