Top Definition
An adjective describing an individual who is trifling, or excessively irritating in nature or attitude.
That's some derpsy shit, man, that bro just knocked over my beer.
by imadeapoopie December 07, 2010

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The feeling or acting like one is in a state of derp. In other words, it is the state of being where one is caught in whimsical silliness.
My corgi is being so derpsy today that he keeps tripping.
by jadders July 10, 2012

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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.

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.

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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