Top Definition
The opposite of procrastinating. Doing things that you need to get done as early as possible in order to free up time for future shenanigans, tom foolery, and lollygagging.
Paul was concrastinating his essay due on friday because he knew there was a ripper at ski house thursday night, and he wanted to rage!
by john557 April 14, 2009

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Lotsa space for your liquids.

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The Urban Dictionary Mug

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The Urban Dictionary T-Shirt

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the opposite of procrastinating, doing something ahead of time.
Tom - Hey man, what are you up to?

Tim - I'm concrastinating about Friday's project, didn't want to turn in it late.
by Dcarcher July 03, 2009

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