muggins mugginess • muggish · · · Info · Definitions · Synonyms · Characters · · muggins · · Text Latin · · Script 7 · · Length Definitions · · · (noun) a person who lacks good judgment. Synonyms: fool, sap, saphead, tomfool. · · Noun Definition 1 Synonyms · · · fool · · Synonym 1 sap · · Synonym 2 saphead · · Synonym 3 tomfool · · Synonym 4 Characters · · g latin small letter g U+0067 i latin small letter i U+0069 m latin small letter m U+006D n latin small letter n U+006E s latin small letter s U+0073 u latin small letter u U+0075