crap out

Back down, quit, When it got to the point of putting up some money, Jack crapped out . This expression originated in the game of craps, where it means to make a first throw (of the dice) of two, three, or twelve, thereby losing. [ Slang ; 1920s]

Go to sleep. This usage was military slang for sleeping during work hours or during a crap game. [ Slang ; c. 1940]

Die, as in He's really sick; he could crap out any time . This usage is less common than def. 1 or def. 2. [ Slang ; 1920s]