motormouth motor-mindedness • motor mower · · · Info · Definitions · Characters · · motormouth · · Text Latin · · Script 10 · · Length 3 · · Syllables Definitions · · · (noun) someone who talks incessantly. Example: "I wish that motormouth would shut up." · · Noun Definition 1 Characters · · h latin small letter h U+0068 m latin small letter m U+006D o latin small letter o U+006F r latin small letter r U+0072 t latin small letter t U+0074 u latin small letter u U+0075