A dirty snow-white is when youtake a line of good cocain and pour it into a krazy straw. Insert one end into a hookers ass and put the other end up your nose. Then have said prostitute fart and it will send the cocain up your nose.
1) When you try to produce a show and it is rescheduled for a year later due to scheduling conflicts. In the process of trying to get the show rescheduled, many problems occur.
2) A curse that you say when you want a show to fail miserably.
"Ugh, our show was canceled! I bet we're gonna have a Snow White trying to reschedule!"