A disease common to junior martial artists. After very little experience they think they are the love child of Bruce Lee and Musashi and know everything there is to know about combat arts.

As the old saying goes: a little knowledge is a dangerous thing.
Damn, that kid has read Go Rin no Sho but still has Green Belt Syndrome
by BigScottUK August 01, 2006

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.

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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).

Buy the t-shirt
Top Definition
A disease common to junior martial artists. After very little experience they think they are the love child of Bruce Lee and Musashi and know everything there is to know about combat arts.

As the old saying goes: a little knowledge is a dangerous thing.
Damn, that kid has read Go Rin no Sho but still has Green Belt Syndrome
by BigScottUK August 01, 2006

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