deffinition 1- a mini light in plant's leaves that gives them their color.
A little Elf goes into the leaves and turns the light on every morning. After the light is on, the Elf picks a color, which happens to be the color you see. When the leaf dies, the illmatic light is taken off the leave to use for another leaf.

deffinition 2- another way to say you need to calm down and take 7 deep breaths. Also if you are mad, sad, depressed, pissed, etc.
*Go turn the illmatic lights on before the sun comes out!

*Leaf #885's illmatic light is broken, go change it.

*You need to turn your illmatic light off before you talk to him.

*I wish my illmatic light could just go away!
by Iyonna && Darrell = ] June 17, 2006
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its is the best jerking crew in georgia
reej from illmatic high
by sicknjerkin November 3, 2009
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The act of playing illmatic all the through, The Genisis - It aint hard to tell, while rapping along word for word without making a mistake.
HipHopHead1: Yo last night i was mad bored so i started too illmaticize.

HIpHOpHead2: Damn god did u finish:

HipHopHead1: Nah i said wont even run about gods i dont belive in that shit isntead of none of that in represent i was tite.

hiphophead2: i feel you dunn illmaticizing is a tough one
by Callmeskeesokal September 25, 2008
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