Rejectionism 

1. The belief that you should reject anything proposed by another political party or group, no matter what it is or how it might benefit others.

2. A kneejerk reaction to anything that isn't "ideologically pure."

3. The attitude that you can honestly reject an idea even if you don't what it is -- or that you can reject a proposal without even reading it -- simply based on its origin.

Melvin is a perfect example of Rejectionism. He condemned the latest health care plan before it was even released -- in fact, before it was even written.

Rejectionism by Peter Kobs August 4, 2009

Class Reductionism 

The idea in some leftist circles that all oppression based on gender, sex, race, etc. is just a byproduct of class struggle, and that once class disparity is solved, all those issues will vanish

"John thinking racism will stop existing after the revolution is a display of class reductionism"

Class Reductionism by nddragoon July 17, 2020

Mediumship Reductionism 

It is the idea inside skeptical and neoatheist circles about reduce mediumship to simple psychological tricks and mental problems, considering all mediums as charlatans and mentally ill people.

"The medium refuted the thesis of mediumship reductionism in the discussion with the neo-atheist during the mediumship session."

"Extraphysical theory refutes the mediumship reductionism theory... But skepticals and neoatheists do not want to recognize it."

Mediumship Reductionism by Full Monteirism January 29, 2021

rejectionitis

A temporarily debilitating emotional/physical manifestation of withdrawal resulting from perceived rejection.

The condition presents from equal amounts perceived rejection AND self-pity/sulking.

After his girlfriend stormed out and damaged his frail ego, he later refused to sleep with her/was unable to perform, citing his feelings of rejectionitis.

rejectionitis by smartcookie April 17, 2009

Rejectionese

The well known language used by a single woman to reject a single man.

I thought she was a nice girl until she started talking to me in Rejectionese.

Rejectionese by delpelham October 19, 2013

Argumentative Reductionism 

Argumentative reductionism is an argumentative falacies that seeks to reduce all the arguments of an opponent using simply sentences, mainly logical falacies, nihilism and pessimism. Argument reductionism is usually nihilistic and pessimistic, always seeking to see the bad side or weaken points of the opponent was a way to refute him or attack him.

"Argumentative reductionism is a common thing in debates on internet, but mainly on political debates on internet."

"Argumentative Reductionism is really used by revisionists such as apolitical socialists and pessimistic socialists."

Argumentative Reductionism by Full Monteirism January 16, 2021

Class Reductionism 

Class reductionism is the epithet cast by cafe liberals on actual revolutionaries who understand that class struggle must be the foremost revolutionary struggle. Typically used by Twitterati and (insert identity politics faction here) Studies majors.

Pat reconsidered their accusations of class reductionism when the armed cis males freed them from their life of drudgery in some cubicle farm serving capital.

Class Reductionism by Urban Misanthropologist March 2, 2021