Here's a breakdown of how it works:
* Lines 1 and 3 rhyme: "Twas brillig," and "the slithy toves"
* Lines 2 and 4 rhyme: "and the slithy toves did gyre," and "Gimble in the wabe"
* This pattern continues throughout the poem, creating a strong sense of rhythm and musicality.
It's worth noting that the poem's unusual vocabulary and nonsensical language create a unique rhythm and flow that contribute to its overall effect.