What kind of way of talk corresponds to ‘말을 함부로 하다'?

Respuesta de un hablante nativo
Rebecca
‘말을 함부로 하다' can happen in various situations. ‘함부로' means speaking carelessly and roughly or behave rudely without deep thinking. In this scene, Manager 강 bombarded rough words and even threaten to hurt the eye, so the speaker used ‘함부로 말하다'.