Misspronounciation of the Gigawatt measurement of energy, most famously used in the film Back To The Future (1985) in a discussion between Doc Brown and Marty McFly on the subject of powering the doctor's freaking awesome DeLorean.
"1.23 Jiggowatts?!?!?!"
by A. Robert Dowson August 21, 2006
Get the jiggowattmug.