mutt

or mut

[ muht ]
/ mʌt /

noun Slang.

a dog, especially a mongrel.
a stupid or foolish person; simpleton.

RELATED WORDS

Origin of mutt

1900–05, Americanism; short for muttonhead
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for mutt

mutt

/ (mʌt) /

noun slang

an inept, ignorant, or stupid person
a mongrel dog; cur

Word Origin for mutt

C20: shortened from muttonhead
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012