Top Definition
The debilitating condition suffered for approximately 1 to 3 business days after a wild weekend in Las Vegas, New York City, or another recognized center of partying and nightlife.
I called in sick to work because I spent the weekend in Vegas and I came down with a case of Sinfluenza.
by thejdog2007 May 14, 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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