Top Definition
1.21, the number of gigawatts necessary to power a Flux Capacitor
I just had a 1.21 gigawatt flux capacitor installed in my car
by Zeke April 13, 2004
2 more definitions
1 billion watts. "Giga" follows "Mega".
Whoever wrote the first definition for gigawatt is a dumbass.
by dammit janet June 19, 2003
(pronounced: ji-ga-wahts) A measurement of electricity, used more often in time travel than in real life. It is equal to one billion watts (enough power to generate 33333333.333333... to two-hundred-million flourescent lightbulbls)
"1.21 gigawatts are required to power the flux capacitator"
by Michael A. Collins III January 25, 2009

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