Top Definition
1. The act of shaking and/or vibrating a school desk, as if compelled by the will of Satan himself.

2. Giving birth to a half bat/half human child.
I got a ticket for Haasing at 55HPH in a 45HPH zone.
by lkasjdf;lkasf November 19, 2007

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The Urban Dictionary Mug

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Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

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