I gotta admit (can't recall if I mentioned it at the time) -- "vittu", while a rather common (albeit also very coarse) expletive in Finnish, is actually literally a derogatory name for the female genitals: "cunt".
So a fairly literal translation of that phrase would be, "Haven't we had enough of this cunty job for today?".
Sorry if I've fooled you to unwittingly break your own guidelines... But, hey, nobody fucking knows what it means, so what's the harm?
Well, nobody *did*, before this post, anyway...