Top Definition
Something you'll never survive.
Ninja: "SHORYUKEN!"

Bystander: AAH! Ninja attack!

And then everyone dies.
by TZScribblez December 03, 2007

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When prisoners wrap shirts around there heads to make a mask and go attack fellow immates,The very same tradition my own Father started.
Tray - Yo dogg let's Ninja this foo.

cop - All we saw was eyes.
by GDOGG October 31, 2004

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The Urban Dictionary Mug

Your favorite word on a white mug.

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The Urban Dictionary Mug

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

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its when your embarressed about being on wellfare,and your about to pull out your bridge card. Instead of calling it that you say ninja attack!
Hey your total is 5.50
hang on let me pull out my ninja attack!
by courtney and jeremy!!!!!!!! October 11, 2007

The Urban Dictionary Mug

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The Urban Dictionary Mug

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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1. when someone comes completely out of nowhere during a race or any other event.

2. fighting a single person or a group of people like ninja
"That guy was in last place for the race but he just Ninja Attacked us."
by y.cole March 03, 2012

The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Lotsa space for your liquids.

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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