Top Definition
the act or action of being a dumbass within the presence of those who do not appreciate such behavior; a belief that donkey behavioral habits are polite in social meetings.
DA chat rooms ban members for dumbassism
by daft lackey April 12, 2005

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A criminal offense in which a person acts like a dumbass.
Johhny was caught wanking in his car. He will be convicted of dumbassism.
by r-u-done April 12, 2005

The Urban Dictionary Mug

Lotsa space for your liquids.

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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