Perhaps if they had had guns, we could have traced this expression to Moses. In fact, what we do get is, "just kill me now." Num 11:15 in case you want to put it on a bumper sticker.
I joke about it because I think one of the ways we have sucked the life out of the bible and the lives of the saints is that we have, at least in our minds, sterilized them. And in doing so, we rob them of their ability to speak real people.
Moses is absolutely positively fed up. He is at the end of his rope. I would say one more complaint and he's just going to scream, but he's past that point.
And which of us has not been there at some point: as a parent, as a pastor, as a supervisor at work, a leader in your neighborhood association or church group?
Here is where really talking to the saints in prayer can help. We can turn to people like Moses, the ones who have been there,vent to them, ask for their intercession. Moses got through it and so can you.