Top Definition
The language in which the ends of certain words and/or syllables are replaced with "-er" to provide an enriching and fulfilling sentence.
"Sclerper derper?"
"Actually, flerper derper skerper, indeed."
dari Chrilerper Sabtu, 22 Juli 2006

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A person who is a dumbass, schmuck etc.
That guy is such a derper, why is he listening to the backstreet boys?
dari PJisJesus Sabtu, 15 Desember 2007

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A herpderper.
Derper is herpin' & derpin' all the ding dong day.
dari herpderper420 Kamis, 18 Agustus 2011

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a person who cums too early; or someone who fucks it up, can be used in many different scenarios. refer to example
"Man I really derped that exam"
"He's terrible in bed, such a derper"
or just plain "you fuckin derper!"
dari harry couter Selasa, 21 Oktober 2008

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The Urban Dictionary T-Shirt

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A non existent word made up by the "smartest" women in the world, shortly thereafter discredited by the smartest man in the world.
Haha yeah you derper
dari asdfsdagasdgdsagfdgsadfgewasvc Jumat, 10 Agustus 2012

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The Urban Dictionary Mug

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the combo of the Dr. and Pepper in Dr.Pepper derper
man i could use an ice cold derper
dari mason1991 Rabu, 10 September 2008

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Lotsa space for your liquids.

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The Urban Dictionary 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).

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