From Longman Dictionary of Contemporary Englishflukefluke /fluːk/ noun [countable] informal CHANCE/BY CHANCEsomething good that happens because of luck He agreed that the second goal was a fluke. —fluky, flukey adjective a fluky win
Examples from the Corpus
fluke• Unconsciously we feel it was a fluke and we are afraid of being found out.• I'll have to win more than once, otherwise people will think it was a fluke.• This was a fluke, a one-time loophole that has been plugged.• But there was no fluke, and no mistake, about what happened here Sunday.• By some terrific fluke Richard came face to face with his future at the precise time he most needed to see it.Origin fluke (1800-1900) Origin unknown. 