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4.
To be a strong supporter of anti-communism, named after senator Joseph McCarthy. Often persecuting without proof and using tactics similar to the soviet KGB

Has nothing to do with Paul McCart(N)ey
*Better Dead than Red* is a phrase often associated with McCarthyism
by GrizzlyBearone August 28, 2011
 
1.
Post-medieval witch hunt, and testiment to mankind's inherent flaws which will inevitably lead to its own destruction.
After ages of prosecuting christians, jews, freemasons, pagans and communists, we still haven't learned anything, really.
by Ketter February 14, 2005
 
2.
To live according to the words of Prophet and Beatle Paul McCartney. Quickest way to get medicated. (other options, Ringoism, Lennonism)
Woke up, got out of bed. Dragged a comb across my head. Side by side on my Piano, Oh lord. You know you was a suffragete, Jet Boooooooooo....The movement I need is on my shoulder, Jude. Wearing the face that I keeps in a jar by the door, no of course it isn't my face. How would I do that? Live and let die!-Cohesive Word Salad of McCarthyism
by Wisk February 05, 2008
 
3.
n unscrupulously accusing people of disloyalty (as by saying they were Communists).

In 1947, President Truman had ordered background checks of every civilian in service to the government. When Alger Hiss, a high-ranking State Department official was convicted on espionage charges, fear of communists intensified.

(McCarthy) capitalized on national paranoia by proclaiming that COMMUNIST SPIES were omnipresent and that he was America's only salvation.

Don't criticize the United States. Don't be different. Just conform.
Asshole:"are you now or have you ever been apart of the communist party?"
innocent:"No."
asshole: "Give me names of people you know who might not be a conformist!"
innocent: "I know noone like that."
asshole: "You liar! you're going to prison! and one way or another you're gonna learn how to be someones bitch!"
by Almahawk January 12, 2005
 
5.
The practice of obfuscating legitimate inquiries by flashing a toothy grin and speaking in vapid soundbites.
I was trying to get information about legislation, but instead I was confronted by frustrating McCarthyism.
by journosaurus rex January 12, 2010
 
6.
One who says things without proof. The origin of this word is from the early 1950s during the red scare. A man with the last name of mcCarthy was blacklisting celebrities without proof. This is the reason why a person would be called a McCarthiest.
Person 1: My house is guarded by 10 electric fences!
Person 2: You lie.
Person 1: Dont you mean im using McCarthyism?
Person 2: Whats McCarthyism?
Person 1: Why dont you look it up at urbandictionary.com
by Leopold Sampsonite February 07, 2006
 
7.
The practice of saying things without proof; believing your opinion has merit as a result of one's social status such as being a celebrity.
Once thought to be eradicated from industrialized countries, the incidence of polio is on the rise again thanks to McCarthyism.
by Ziggy Blonde January 12, 2014