I found this video at the Disability and Representation Facebook page. The owner also has a great blog of the same name that’s well worth reading.
Some of the “shit” lines in it are just as familiar in settings other than academia. I think it’s the earnestness of the phrases that smacks of a uniquely academic variety of smarm. Also, there's a tone of condescension, of knowing better, that seems to go with people who are used to thinking of themselves as more enlightened than the average person, no matter what the subject.