A lot of people (most?) seem to be reading Weird Al’s song “Word Crimes” as a simple litany of grammar and usage bugaboos. This seems to me an impoverished interpretation. Yes, “Word Crimes” is set to the tune of a (once) popular song, and the lyrics are rhymed in a reasonably clever way. But in this reading, it’s still little more than a laundry list. While Al certainly does plenty of parodies like that, they’re not usually his funnier ones.
When I first heard Weird Al’s song “Word Crimes”, I interpreted the joke as making fun of the narrator, who is super hung up on ridiculously inconsequential bullshit. I find this amusing, because I enjoy poking fun at people who get huffy about “grammar”.
That is to say, the song is a satire of persnickety prescriptivists. The fact that these people have been sharing it around as a rallying cry makes this satire all the more cutting.
I don’t think this is an unreasonable or forced reading. There’s plenty of precedent in Al’s music for having incredibly unself-aware narrators. Even sticking to the album Mandatory Fun, there’s a perfect example of this in “Jackson Park Express”, which is easily the album’s best track.*
* (OK, not easily—”Foil” takes a close second. Because … it’s about aluminum foil.)