Definition of "whizz-bang" [whizz-bang]

• Small calibre shell from World War I. (noun)

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• "It wasn't supposed to be like this—whizz-bang Twenty20 looks very much like a young man's game."
• "Set in the round inside a former Victorian market hall, the Icelandic singer's latest project – Biophilia – feels less like a traditional gig, and more of a demonstration of whizz-bang musicological ideas."
• "One problem, as stated, is getting into the marketing trap of having to have the very latest whizz-bang novelty that might only incrementally add to what one already has."