Top Definition
When you're sat there innocently on the computer, or lying in bed, trying to sleep.... THEN BAM! You find yourself involuntarily jerking off...
Danny was almost fired for accidentally masturbating in the conference, but the Italian business men understood. They too, had suffered from spontanewank from time to time...
by lqwis December 15, 2010

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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