cari istilah yang lo mau, kaya' timebomb:
 
2.
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
 
1.
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
 
3.
A herpderper.
Derper is herpin' & derpin' all the ding dong day.
dari herpderper420 Kamis, 18 Agustus 2011
 
4.
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 Jum'at, 10 Agustus 2012
 
5.
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
 
6.
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