A rat who lives in a sewer with X-box speakers, 5.1 surround sound WoW speakers, Rainbow Six, and a Blue Dickies Jacket. He is also a trainer of the TMNT (teenage mutant ninja turtles) and has a afro.
master splinter has 5.1 surround sound 500 $ speakers.
by Ratfro September 05, 2007

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Top Definition
A person who looks like a rat, but with the training of the Karate. So in essence Master Splinter is just a Ninja Rat Boy
Ahh! Master Splinter you have honoured us with your presence.
by Maverick October 13, 2003

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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Someone who looks like a rat. Derived from the teacher of the Teenage Mutant Ninja Turtles.
Andrew Bray is master splinter.
by Gumba Gumba February 25, 2004

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.

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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.

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