O frabjous day!
“Frabjous” is clearly related to “fabulous.” If “O frabjous day!” sounds like something a choir might sing, you’ll be interested to know that there’s a popular choral version of the poem:
There’s also this folk-song version of the poem by Donovan (a.k.a. Mellow Yellow):
To help improve the meaning of these lyrics, visit "Jabberwocky" by Lewis Carroll and leave a comment on the lyrics box