brillig

Supposedly from bryl or broil.

brillig (uncountable)

1. A nonce word in Lewis Carroll's Jabberwocky, explained by Humpty Dumpty as "four o'clock in the afternoon — the time when you begin broiling things for dinner."
   • 1871, Lewis Carroll, Jabberwocky:

     'Twas brillig, and the slithy toves / Did gyre and gimble in the wabe

•   brillig on Wikipedia.Wikipedia