To have a tendency to want or to be interested in mechanical things; to understand, and be able to work on things of a mechanical nature, or things with gears.
That boy over at AutoZone is a total gearhead, he loves to work on his car.
by PANDA <3 October 16, 2014
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Person who in a MMO group will check teammates gear and then express his disgust for those who dont have equipped the best of the best regardless of current challenge level.
Person one:"OMG! Why u using that gear?! Get sumthin better! Heirlooms!"

Person two:"Chill Gearhead! Its normal Deadmines!"
by Marstein81 April 08, 2011
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Someone who's very into cars and the technicalities of how they work
Man, I saw this guy the other day who thought he could smoke anyone on a race but he can't even drive stick. He's clearly not a gearhead.
by Demonic_ April 20, 2016
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A klutz, embarrassment; dick. Also an asshole
Come on guys don't be a Gearhead.

He was walking over with the food, he slipped and fell down along with the food. Stupid Gearhead.

Walks over to try to talk to a group of girls, the girls blow the rape whistle and guy gets arrested. Bystander says to friend, "wow did you see that Gearhead, what a dick!"

Dad asks to take out the dog, and doesn't because he's too lazy. Don't be a gearhead
by rick491 November 10, 2013
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Someone who is totally into cars and is very knowledgeable about how to modify and fix them.
Eric is such a gearhead he has a seatbelt buckle for a belt buckle.
by ghost July 31, 2003
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A person who is into all things motorized. This can be cars, motorcycles, machines, planes, or boats, but specifically relating to the engine and power delivery. Knowing how to weld and machine metal are also traits of a gearhead.
Dude, she's such a gearhead. Go show her that old lathe and tools in your grandfather's garage and she'll be in heaven.
by Analogworm January 07, 2008
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