Definition of mugwump
1 : a bolter from the Republican party in 1884
2 : a person who is independent (as in politics) or who remains undecided or neutral
Origin of mugwump
obsolete slang mugwump kingpin, from Massachusett mugquomp, muggumquomp war leader
First Known Use: 1884
Learn More about mugwump
Britannica.com: Encyclopedia article about "mugwump"
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