Idiotically he thought: Humpty Dumpty explained it. A wabe is the plot of grass around a sundial. A sundial. Time — it has something to do with time. A long time ago Scotty asked me what a wabe was. Symbolism.
'Twas brillig —
A perfect mathematical formula, giving all the conditions, in symbolism the children had finally understood. The junk on the floor. The toves had to be made slithy — vaseline? and they had to be placed in a certain relationship, so that they'd gyre and gimbel.

Mimsy Were The Borogoves (1943)