Top Definition
A common term in both internet and RL conversations. Someone who's sole ambition in life is to stop others from getting lulz or sometimes even epic lulz; often an internet user in a postion of power who tries to stop lulz-worthy acts of anarchy.
Person 1: WTF? Some n00b mod on wikipedia reverted my lulztastic edits to this page.
Person 2: What a Lulz Killer
--
Person 1: ZOMG this admin disabled my uber CS hacks; now I'll have to get headshots using only skill.
Person 2: o_O What an EPIC Lulz Killer
dodane przez Master. A. N. Onymous styczeń 27, 2008

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Someone who ruins a perfectly good 'your mom' joke by bringing up the fact that their mother is dead and therefore spawning an awkward silence.
Me: So does your MOM.
Guy: My mom's dead.
Me: Jackass Lulzkiller...
dodane przez EpicFailJem marzec 31, 2009

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Lotsa space for your liquids.

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The Urban Dictionary Mug

Your favorite word on a white mug.

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The Urban Dictionary Mug

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

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

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

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One who has killed a mass of lulz over an extended time period. Also one who stops lulz from occuring by not showing up where lulz occur.
Sean: Dude I asked Brian if he wanted to play CS with us after school.
Kareem: What'd he say?
Sean: He wants to hang out with his girlfriend instead.
Kareem: What an epic lulz killer.
dodane przez Vaginabuttfarts luty 24, 2008

The Urban Dictionary Mug

Lotsa space for your liquids.

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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
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