A whimsical or nonsensical word with no standard definition; used playfully or invented for creative purposes.
This appears to be a nonce word or invented term, combining 'cur' (possibly from 'curl') and 'whibble' (possibly imitating the word 'whimble'). It has no documented etymology.
Some words are delightfully made-up—'curwhibble' has all the phonetic characteristics that make a word feel English-like, even if it doesn't mean anything. Our brains are wired to recognize word-shapes.
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