gearheadEtymologyFrom gear + -head.nounA fan of the Gears of War media franchise centered on a series of video games.“It’s good to be free: Epic Games’ Gears of War is about to go weapons-free. The Xbox 360 smash has churned out sales of 2 million in just six weeks and soon enough, Gearheads will find free downloadable content on the Xbox Live Marketplace.”A mechanical device used to increase the torque of gears.“HLD has developed a linear belt actuator that circulates the belt in an unusual way, resulting in a gearing reduction of up to 40:1 without a gearhead.”An enthusiast for new technology, or for motoring.“2000, "Ford Harley-Davidson Truck Rumbles Onto Web to Benefit Charities," PickupTruck.com (US), retrieved 23 Dec/07, A self-proclaimed gearhead, Leno loves fast Fords and hot Harley-Davidson motorcycles.”