A term used by yokels or rednecks to describe a good time, though if used in general conversation, the slap of rightousness may be employed to correct afore mentioned linguistic mistake.
gee ma, this sure is a humdinger of a meal

mate, this is is a humdinger of a party ... *SLAP groovy *SLAP ... ok what can i say *SLAP
by Gonk September 28, 2005
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When a person sucks a mans penis while humming at the same time.
Stacy, the humdinging prostitute, hummed "Whistle While You Work" while giving Daniel oral sex.
by Lillydalady January 21, 2003
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Noun

1. A term used to describe the sexual act of a kneeling woman who is teabagging a ballsack and humming, all the while grooming the man's ass crack for dingle-berries. She does the grooming much in the same way that a monkey picks the bugs off another monkeys head.
The giver of a humdinger is useful in more ways than one to the receiver.
by billebllunt May 13, 2014
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A Hummer that dings the other cars in the parking lot.
Why oh why is that Hummer allowed to park in the Compact lot? It's humdinging everything!
by Paul Wartenberg January 25, 2005
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What Simon Cowell (American Idol) hopes next week will be...
I am hoping for a humdinger.
by Naddda Fan May 17, 2008
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