Top Definition
A large amount of cum in a pile that has hardened over time.
I went over Matt's house yesterday and accidently stepped on his cum stone!
by Gavin Clarke May 21, 2007

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A large mass of semen that has solidified in the testes due to extreme periods of time between ejaculations. A medical emergency, this occurrence causes immense pain upon expulsion from the glans. Not to be confused with "Cum Stone"
^^^SEE DEFINITION OF CUMSTONE^^^
by Dr. Mathulous September 07, 2011

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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).

Buy the t-shirt