by PJisJesus December 15, 2007
The language in which the ends of certain words and/or syllables are replaced with "-er" to provide an enriching and fulfilling sentence.
by Chrilerper July 23, 2006
A herpderper.
by herpderper420 August 19, 2011
A non existent word made up by the "smartest" women in the world, shortly thereafter discredited by the smartest man in the world.
by asdfsdagasdgdsagfdgsadfgewasvc August 10, 2012
by Viking990 June 02, 2018
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!"
"He's terrible in bed, such a derper"
or just plain "you fuckin derper!"
by harry couter October 22, 2008