Top Definition
A name you give to someone for comitting plagiarism excessively and posting other peoples songs or videos on their blog without giving the original artists credit.
Person 1: "I downloaded that song I showed you the other day and posted it on my Newgrounds profile without giving the artists credit!"

Person 2: "Wow, you're a bit of a Mathum aren't you?"
by David Stead January 26, 2009

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.

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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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