Mugwumpism Definition
    noun
  
 (US, politics, slang) The acts and views of the mugwumps.
Wiktionary 
Other Word Forms of Mugwumpism
Noun
Singular:
 mugwumpismPlural:
 mugwumpismsOrigin of Mugwumpism
-  
mugwump + -ism
From Wiktionary
 
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