Top Definition
N. A crass yet novel insult asserting that a person is, in essence, the personified act of male masturbation. Best used in moderation and in lieu of traditional slander due to its absurdity and memorable sting.
1 .Hey Jimmy Whack, what are we wearing tonight?

2. Did you see that guy cut in line? What a Jimmy Whack!
by Europe Penyen January 24, 2010

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

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The Urban Dictionary Mug

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

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A no longer functioning penis.
Hey, Sephy's Jimmy whack!
by Rhendal September 21, 2003

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Your favorite word on a white mug.

Create a mug

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug

The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

Buy the t-shirt

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