Top Definition
To mess or fool with. Also used in context of keeping company with.
"To jack around with electrical wires is risky."

"I prefer to not jack around with all that drama - it's just asking for trouble."
by drivers January 27, 2006

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To manipulate figures in an effort to provide clarity, but more often than not, it results in confusion.
"You could just pull the numbers, dump them in Excel and then jack around with 'em until you get the output you want."
by Fye Nance September 18, 2008

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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

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it means you don't literally jack off all day but you might as well
because there's nothing better to do
I only have one class tomorrow, so I'm probably just going to jack around all day.
by Jerrrrrrrr September 17, 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.

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