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15.
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
 
1.
Something that is extraordinary.
Dan had a humdinger of a penis.
by Dan Fox June 24, 2003
 
2.
A woman with the capibility to throw her left breast over her right shoulder and squirt buttermilk into her anus.
Speaker 1: I hooked up with a humdinger last night.
Speaker 2: I know, you've told me eleven times.
by zoidberg1997 May 22, 2011
 
3.
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
 
4.
When during a Blowjob the giver hums to the Batman theme song whilst an erect Penis is motioning back and forth in their throat and at the same time simultaneously flicking the receiver's balls as if it were the lunchtime bell.
My genitals were on sexual fire so bad when Jamie gave me a Hum Dinger that my heart stopped.

Who's Speechley fooling saying that he's not sexually experienced....the Hum Dinger he gave me told me he's done this kinda thing many times before.

If I'm not copping a Hum Dinger...I'm not alive!
by Horny Horn May 29, 2013
 
5.
an adjective used to describe something of large importance, significance, or shocking
that was one hum dinger of an episode of the OC!

this test is one hum dinger of a toughie!
by Colleen Yergacheffe May 06, 2006
 
6.
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 12, 2014
 
7.
n. something that's really funny, as a joke, or perhaps an occurance that was exciting or funny. syn. doozey.
1. this dude bumped my car the other day. i got a hum-dinger of a scratch on it.
2. did you see ho much air he got? that was a hum-dinger.
by morgan the mighty April 08, 2005