I was juste watching an episode of Chicago Hope and the neuro surgeon guy said that roofies is short for "Rohypnol". Commonly known as "the date rape drug" or "knock out pills". I won't tell you why he was talking about this because it was sick. Sorry if this has already been discussed. I read a post by someone last week asking what it was and nobody had answered him.
Jon
P.S.: For you Canadian fans. I'm calling Global tomorrow to see what's going on with the episodes being so late (If I can remember, I'll stick a note somewhere).