Someone who seems like an upright citizen, but really has no spine.
When the old lady tripped and fell, Jim rushed over to 'help' her- by relieving her of the weight of her purse. What an imposture.
by squamouscell February 10, 2011

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Top Definition
Deception: The act of pretending to be somebody else in order to trick people, or an occasion on which this is done.

Imposture is what imposters do.

The act of imposture is against the law.
by Jafje April 03, 2007

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Your favorite word on a white mug.

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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