Rush has used the metaphor of rape several dozen times in the last two years, and the frequency has been increasing. Beck has been making a number of assertions that Obama is "raping" the USA over the last few months, including Roman Polanski jokes. "Bending over" and "grabbing one's ankles" is the favored phrasing for the activity.
The American Id has been speaking loudly for several years now. For a couple of years, ass, spanking, and sadism metaphors were dominant, no pun intended. Now, it's crossed over into rape.
I'm not reaching -- the rhetorical atmosphere has been filled with (political) rapes and rumors of rapes, most of it from the Right. It's sad that it made it to SNL, though I doubt that any of the writers gave it much thought. Historically, body-assault (and poison, and disease) metaphors are well known indicators of rising inclinations of fascism; they are warning bells, in a way.
Don't take my word for it; just turn your attention to it. I'm sure it will become the topic of punditly concern fairly soon.
