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In politics, a countermeasure to Free Speech protections whereby threatening information is discredited by associating it with already-discredited information.
Citizen journalists are publishing articles about how our healthcare reform bill is really designed to work in favor of our interests and at the expense of minorities! We can't censor them! Quick! Publish a bunch of Chaff about UFOs and a Flat Earth and link it to their sites! That way it'll look like only conspiracy theorists view this kind of stuff and no one will take it seriously!

Yes, I know that when you see this book about the War on Amazon it says that all the customers also purchased books about Nazism and Holocaust denial, but that's just Chaff intended to make it look guilty by association.
by Forgiver July 25, 2017
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Something that is of low quality and trashy. The opposite of swanky. From the Bible reference "separating the wheat from the chaff"
This Cafeteria lunch is so chaff.

That was a chaff pool shot.
by Swagmaster3.14159 October 25, 2015
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A chaff is the name given to a group (or person) of people who are moronic junkies who have dead end jobs and live in a rough estate.

Display a very limited vocabulary using words such as 'ravin' 'shafe geez' and 'give me your mobile or i'll f***king knife ya'
you f***king chaff, p**s off back to your council flat
by craig.B November 21, 2004
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A person kept around during the zombie apocalypse by a group of survivors as the designated bait when running from zombies. Usually a slower, heavier or asthmatic person without stamina. The idea is that he/she will be the person at the back of the group and will be caught by the zombies thus allowing the rest of the group to escape.

It has its origins in WWII radar counter-measures - bogus targets dropped by aircraft to confound enemy surveillance.
"We keep Bill around as Chaff, we don't have to run fast, just faster than Bill....."

"Who's the Chaff in this group? Look around, if you can't pick him out, it's you!"
by Necropology October 17, 2012
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A radar countermeasure; a cloud of material which creates a cluster of false targets that swamps enemy radar, diverting attacks away from the primary target.
"So basically, Sarah Palin was deployed as chaff to draw fire away from McCain."
"Well, that figures--McCain is a military pilot after all."
by weskimcom September 09, 2008
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A situation or person which conflicts with one's own situation or beliefs. Often used at prep schools in Northern New Hampshire.
Damn, that kid is such a chaff. I hate that tool.
This homework is such a chaff.
by CarpeTheDiem180 April 21, 2006
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Highly reflective debris launched from the back of aircraft to confuse radar guided missiles. Chaff is usually launched together with pairs of flares, which throw off infra-red guided missiles.
The F-15 pilot performed evasive turns and started dumping chaff & flares as soon as he heard the missile warning beep.
by Tronno November 09, 2004
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