warhammer 40k (gamesworkshop) universe space marine chapter, this chapter was created to fight the forces of chaos chapter 666
the grey knights fought off hords of chaos deamons
by OutLaw92 November 01, 2008

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

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Top Definition
Someone who defends an unknown person who has been warned or punished by a moderator especially when the reprimand was deserved but the grey knight feels the need to stick up for him regardless.
When the moderator warned a player for shouting racist insults over his mic a grey knight kindly told the moderator to chill out.
by joeybelfort June 26, 2012

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Your favorite word on a white mug.

Create a mug

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug

The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

Buy the t-shirt

The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt