In the context of Douglas Adams's Hitchhiker's Guide to the Galaxy, if Vogon poetry is “the third worst poetry in the universe”, then what is the second worst and worst?
The Wikipedia page on Vogon Poetry quotes the book:
The second worst is that of the Azgoths of Kria. [...] The very worst poetry in the universe died along with its creator, Paula Nancy Millstone Jennings of Sussex... in the destruction of the planet Earth.
Note: The name mentioned in the original radio series was Paul Neil Milne Johnstone of Redbridge, Essex, but this was later removed due to his complaint.
Vogon poetry is the third worst in the Universe. The second worst is that of the Azgoths of Kria. During a recitation by their Poet Master Grunthos the Flatulent, of his poem, Ode to a Small Lump of Green Putty I Found in My Armpit One Midsummer Morning, four of his audience members died of internal hemorrhaging, and the president of the Mid-Galactic Arts Nobbling Council, survived by gnawing one of his own legs off... The very worst poetry in the universe died along with its creator, Paula Nancy Millstone Jennings of Sussex, in the destruction of the planet Earth.
At least the destruction of our planet was good for something.
It's worth noting that originally, in the radio series, the creator of the worst poetry in the universe was Paul Neil Milne Johnston of Redbridge. However, this was actually a real person (that Adams went to school with, IIRC), and for legal reasons the name was changed to the obviously made-up Paula Nancy Millstone Jennings for all subsequent versions.
The second worst is, as quoted in other answers: The Azgoths of Kria.
The worst, according to the Radio Series rather than the book was: Paul Neil Milne Johnston of Redbridge, who perished along with his creation in the destruction of the Earth. [This is described at the end of Fit the First.]