Oh, for Christ's sake! (exclamation). Said when someone says or does something that makes your jaw drop, your head shake in surprise, or makes you want to pull your hair out.
OFCS, I can't believe Obama is offering to raise the retirement age to make a deal on Medicare.
OFCS, Lindsay Lohan's in jail AGAIN? They need a revolving door just for her.
Oh for Christ's sake - a saying that expresses impatience.
OFCS, hurry up and read that article if you want to discuss it with me, I have to go to sleep.