Definition of "flame out" []

• Of processes and equipment involving combustion, to fail due to extinction of flame. (verb)

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• "The wealthiest candidate of all-a former trader worth at least $300 million-spent $28 million, mostly on a barrage of positive ads, only to flame out in the final weeks due to an unflattering divorce file that the press got unsealed."
• "He solved the problem of the sphere by puncturing its outer wall; it deflated like a punctured bladder, and vanished as if it were a flame out of fuel."