also ho-hum
1.
You can use ~ when you want to show that you think something is not interesting, remarkable, or surprising in any way. (INFORMAL)
My general reaction to this news might be summed up as ‘ho-hum’...
PHRASE feelings
2.
You can say ~ to show that you accept an unpleasant situation because it is not very serious. (INFORMAL)
Ho hum, another nice job down the drain.
EXCLAM feelings