1 PHRASE 沉闷乏味的;无聊的;平淡无奇的 You can use ho hum when you want to show that you think something is not interesting, remarkable, or surprising in any way. 沉闷乏味的;无聊的;平淡无奇的 [informal, feelings]
2 EXCLAM (表示小小的遗憾)哼, You can say ho hum to show that you accept an unpleasant situation because it is not very serious. (表示小小的遗憾)哼, [informal, feelings]