Whoa there Tonto!  This isn't really nasty. It's suggestive at best.  It's pretty funny too.

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It's funny that people keep churning out these "school film" type parodies, when nobody really gets to see these kinds of films for real anymore.  Here's a little background.  In the olden days lazy teachers used to roll a projector in with some "learning material" so they could go hang out in the teachers lounge and smoke.  Most of these films were incredibly dated and naive even for the time frame they were show in.  Here's a parody of one now:

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