IN THEORY: Light speed is the rate of travel of light in an un-interupted vacuum. Exactly 299,792,458 metres per second (m/s), where metre is difined by 1983 Systeme International (SI) as "The length of the path travelled by light in vacuum during a time interval of 1/299 792 458 of a second.". The theory of realitivity describes light speed as impassible in rate of travel, but this is based on the fact it hasn't been done yet *rolls eyes*.

However, Light Speed is acctually better told as such: The speed of light is the commonly used interval of time it takes for the green light to turn amber on a traffic light in South Essex, UK, or the time it takes for a traffic warden to travel from the end of the street to the parking spaces to give you a ticket as soon as you pull in.
Light speed is roughly equal to the speed light travels.
by regs_ October 27, 2004
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The minigame in rubik's revolution in which you must press the correct light in time
R.R.: Light Speed.
Player: Ok, here we go.
by A M80N8R May 27, 2016
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The speed at which the car in front of you is traveling which assures you'll get caught by the upcoming traffic light.
Passenger: Do you think we'll make it through the upcoming green light before it changes?
Driver: Nope, the idiot in front of me is going light speed.
by Valet Parking Hater January 21, 2015
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When you masturbate while on shrooms, and your hand moves to fast, causing you to see thousands of hands simultaneously jacking you off.
James: Oh man! I was jacking off on shrooms! and I looked at my dick! and it was... it was...

Farva: Light-speed on your dick?

James: Light-Speed On My Dick.
by Iamfarva April 25, 2010
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c, or the speed of light, is the speed of which photons travel in a vacuum, A.K.A. the fastest speed in the universe.
To travel at/exceed this speed would result in breaking the fabric of space-time.
c = 299,792,458 meters per second = 671,000,000 miles per hour
The new spaceship, Exr-C2 can travel at 0.6 * c (light-speed), or 60% of the speed of light.
by QwertyPixel February 10, 2023
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