poormouth verb 2noun 1forms 3 verb2 •(informal) To claim to be poor.On the other hand one does not want to arrive “poor-mouthing it” in some outrageous turtleneck and West Eighth Street bell-jean combination, as if one is “funky” and of “the people.” — 1970 •(rare) To badmouth (someone or something). noun1 •A poor (impoverished) person, or one who claims to be so; especially, one who cries poormouth (conspicuously makes this claim). formspoormouthed · poormouthing · poormouths