darninterjectionmasculineinformal/di.'a.ʃu/lowdi·a·choPortuguesEnglishEspanolFrancaisDefinitionA mild, euphemistic exclamation used to express surprise, annoyance, or emphasis, equivalent to 'darn' or 'dash'.Where the heck did I put my glasses?What the heck is going on here?syndarndashheckEtymologyDeformação eufemística de 'diabo'.Related wordsdiabodiabólico