The most recent episode of The Simpsons was a Heavenly Creatures parody starring Lisa. This is weird, right? Not because it's an obscure thing to reference for a half-hour's time, although the highly-specific nature of how it went about it's parody highlighted that element: Remakes of particular shots, multiple references to Josh Groban in place of the film's Mario Lanza. That all felt bizarre and tedious, but maybe no more than any other extended parody to grace a whole episode of an animated program. (It was also strangely emotionless for a Lisa-centric episode of The Simpsons, at least to a viewer primarily familiar with the first few, good, seasons.)
But what a weird way to evolve an archetype over a series of years, when depending on coming up with plotlines. The original idea of a smart little girl, who tries hard and wants approval, then becomes a vegetarian, then a buddhist, and then is placed in an intense friendship with a lesbian subtext. This is one for the culture studies majors in the room.
Everyone else is directed to this Youtube video of a child high on drugs from the dentist.