Top Definition
Similar to a Webinar (seminar via the web), except while watching porn and taking care of business yourself.

:To jackoff to online videos, Powerpoints, etc
Dan: Damn, it's hard to stay awake during these webinars

Mike: Bet you wouldn’t have fallen asleep if that were a jackinar.

Dan: no , just my hand would have.
by Mealoil May 14, 2009

The Urban Dictionary Mug

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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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