I was watching How the Grinch Stole Christmas and I was struck by this rhyme (from the song "You're a Mean One, Mr. Grinch:")
You're a nauseous super naus!
You're a dirty crooked jockey, and you drive a crooked hoss
-- Dr. Seuss, How the Grinch Stole Christmas
I tried to see what other particularly excruciating rhymes I could remember. I came up with two:
You know, that little guy, he's got me feeling all contempt-ey:
He takes his boat out loaded up and brings it back in empty.
-- Phil Vischer, Lyle the Kindly Viking
And then of course:
In short, when I've a smattering of elemental strategy,
You'll say a better Major-General had never sat a-gee!
-- W. S. Gilbert, The Pirates of Penzance