From Longman Dictionary of Contemporary Englishhumdingerhum‧ding‧er /hʌmˈdɪŋə $ -ər/ noun → a humdinger
Examples from the Corpus
humdinger• Brown must have been a humdinger of a playground supervisor.• Pierre and Donna are having a humdinger of a row.• What a shame it couldn't have been more of a humdinger.• And it was a humdinger, delivered with passion and poise.• There was a humdinger of a reception to greet us.• a humdinger of a party• Such excitement was absent during a first half that was more humdrum than humdinger. 