Haddocks' Eyes is a term for the name of a poem by Lewis Carroll from Through the Looking-Glass. It is sung by The White Knight in to a tune that he claims as his own invention, but which Alice recognises as "I give thee all, I can no more".
By the time Alice heard it, she was already tired of poetry.
It is a parody of "Resolution and Independence" by William Wordsworth.
The White Knight explains a confusing nomenclature for the song.
The complicated terminology distinguishing between 'the song, what the song is called, the name of the song, and what the name of the song is called' both uses and mentions the use–mention distinction.
Like "Jabberwocky," another poem published in Through the Looking Glass, "Haddocks’ Eyes" appears to have been revised over the course of many years. In 1856, Carroll published the following poem anonymously under the name Upon the Lonely Moor. It bears an obvious resemblance to "Haddocks' Eyes."