Top Definition
Any intellectual/academic discussion meant more to show off the intelligence of the speaker than to prove a point or educate anyone listening.
Freudian literary criticism is pretty useless, to be honest; eventually they stop talking about literature entirely, in favor of pointless brainwanking.
by kiefda03 June 08, 2010

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Act of spending one's time with very complicated theoretical problems which, when solved, do not serve for anything useful or practical.
J: Did you understand the sense of the problem in theoretical quantum mechanics which we solved in our course today?
P: It was just some brain-wanking. It does not have any practical meaning.
by xxteapot November 30, 2011

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.

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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).

Buy the t-shirt