"Jabberwocky" by Lewis Carroll

The given definition is for "gyre" as a noun, but the example sentence is using it as a verb, which could connect to "gyrate" ("to wind or move in a spiral course"--often in a dance).

"Burble" also means "babble" (which is possible because many of the animals that Alice encounters through the looking glass can talk) and "gurgle" (which is also possible because Alice found the poem in a book on the other side of the looking glass, where things often look or are backwards, so a scary monster that gurgles like a baby would not be out of place).

Although the phrase "snicker-snack" sounds more onomatopoeic than meaningful, it could suggest the image of the boy laughing disrespectfully while his blade made snicker-snacking sounds through the Jabberwock's body.

The made-up word "gimble" sounds like the real word "gambol"--the definition fits the overall happy mood of this stanza that starts and ends a poem about the successful killing of a monster. But according to Carroll's Humpty Dumpty, "gimble" means "to make holes like a gimlet" (a gimlet is similar to a corkscrew, which the toves look like).