Gigawatts Edit Meaning

1.

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

See Zeke

2.

(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"

See back to the future, plutonium, delorean, time machine

3.

1 billion watts. "Giga" follows "Mega".

Whoever wrote the first definition for gigawatt is a dumbass.