The Shop Talk line blends theatre and real life. Using the vocabulary of the theatre nerds you knew in high school and applying it to day to day situations.
The Shop Talk deus ex machina card is there for when something unexpected, outlandishly fortuitous or awesome just happens. You get out of that pickle you got yourself into or someone (who may or may not have gotten you into that jam) suddenly gets you out of trouble. No jail time, no probation! Hurrah!