When you are trapped in a situation that is overwhelmingly bleak and unescapable. There is no option to move. No option to escape. No alternatives.
Also, a song by a band called Reuben.
Bill: I have got a massive fucking deadline that I've got no chance of making and a hundred status meetings to go to instead of actually finishing the work!
Ted: So you are C.U.T.W.O.T.E.B.S.
Bill: The bullshit is absolutely enormous!