Top Definition
An expert in the area betwixt the anus and genitals that also is particularly outspoken in their art, so much so that they claim a self-declared royal authority of all things grundle-related.
Mercutio- "Bend thy back, and behold the grundleking!"
by Themistocles January 17, 2007

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1. A guy who pulls a lot of box. (see grundle)
2. The villain in My Little Pony cartoons.
by Iz Markie June 03, 2003

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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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Synonymous with Matt Beavis. Enemy of Little Ponies, and Ruler of the Pick-up Soccer Field.
Man, the Grundle King just scored again!
by Dweebis August 07, 2008

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