In his poem Jabberwocky , Lewis Caroll describes the hunt for a monster called the Jabberwock using humorous invented words Some of these what does the word jabberwocky mean?

Short answer: Jabberwocky is a coined word. Carroll made it up.

• What it means: In the poem, “the Jabberwock” is the monster; “Jabberwocky” as a term also came to mean nonsense verse or language made up of invented words.
• How it’s built: It’s a portmanteau-style neologism. The exact roots aren’t stated, but it evokes loud, silly talk (jabber) and names a fantastical creature (the Jabberwock).
• Context: The poem is full of such invented words (frabjous, slithy, chortle, etc.), and their rough meanings are suggested by the surrounding lines.

If you want, I can give a one-sentence exam-ready definition or a short paraphrase you could quote.