Weird Al is classic. He's been making fun of everything since the dawn of time. Well, at least since the 70s, or something.
James at War, Sheena Melwani and HotforWords, also do a wonderful job of mocking the crappy mangling of language. I think they recruited HotforWords, because she's attractive, she was a rising YouTube star about the time this was made, and she takes language very seriously. It's funny that a Russian woman, who studied English in college, is now teaching Americans how to stop screwing up their "own" language.
Language is important. Word choice and grammar are important for clear communication.