Top Definition
To sneak out of place without anyone knowing.

To leave a place early without saying bye to anyone to avoid them making you stay
I don't want to drink anymore so I'm going to ninja out before anyone notices.

Danny always tries to ninja out early because he cannot hang.
by LW0WW May 02, 2011

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

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

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