whilst your partner is on all fours, you insert your thumb into their starfish. Once this is done, you rotate your wrist in a manor which resembles the throttle of a Harley Davidson motorcycle.
So I was banging this chick doggy style last night, and she gushed great volumes when I gave her the Harley Davidson
by JAFCO December 8, 2011
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The most effective way to turn gasoline into noise without producing any horsepower
Wow that Harley Davidson is as loud as a semi, too bad it doesn't have the horsepower to get itself up that hill!
by CrotchRocketer May 29, 2009
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The most effective machine at turning gas into noise without the side effect of horsepower.
"You hear how loud that Harley Davidson was?"

"So? It's slow, heavy, and can't turn or brake"
by Sondebeech April 15, 2010
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A person who makes a lot of racket but does not go anywhere. Someone who thinks they are cool but are actually quite sad. Named after the Harley Davidson motorcycle because they make a bunch of racket and don't go anywhere, and often the people that ride Harley Davidson's think they are cool but are actually quite sad, and they have serious homosexuality issues.
Dude 1: Jimmy says his band has a record deal with EMI.
Dude 2: Ya whatever! Jimmy still lives at home with his Mom! What a Harley Davidson!
by docktergonzo May 3, 2009
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Once a great bike that was ridden by the baddest of the bad asses but has evolved into being the 2 wheeled sofas of RUB’s.
If you want something with a radio, GPS, a heater, cruise control and back support you should buy a sedan, not a Harley Davidson.
by Mr Wall July 14, 2006
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A twenty cent motorcycle with a twenty grand paint job (that rust will come through given time) corners like a jellyfish on acid.
Tom's Harley Davidson had rust coming through the paintwork, and it cornered like a jellyfish on acid.
by Euromark December 5, 2006
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A once proud brand of motorcycles that were originally only owned by legit badasses back in the day. Sadly sometime in the `80s posers got into the act and Harley Davidson began to become more concerned with merchandising rather than building decent bikes and it became acceptable for doctors, lawyers, and fat bald guys having a midlife crisis to ride Harleys.

If you own a Harley Davidson edition anything you're not a bad-ass you're a pathetic poser urinating allover the once proud name of Harley Davidson. Fuckin' trendys always ruin everything.
by DennisIsEvil July 14, 2006
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