A person who is a dumbass, schmuck etc.
That guy is such a derper, why is he listening to the backstreet boys?
作者 PJisJesus 2007年12月15日
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."
作者 Chrilerper 2006年7月22日
A herpderper.
Derper is herpin' & derpin' all the ding dong day.
作者 herpderper420 2011年8月18日
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!"
作者 harry couter 2008年10月21日
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
作者 asdfsdagasdgdsagfdgsadfgewasvc 2012年8月10日
the combo of the Dr. and Pepper in Dr.Pepper derper
man i could use an ice cold derper
作者 mason1991 2008年9月10日
免费每日邮件

输入你的邮箱地址,每天早晨收到免费的“每日城市之词”

邮件由 daily@urbandictionary.com 发出。我们决不会发送垃圾邮件。

×