Derper

A person who is a dumbass, schmuck etc.

That guy is such a derper, why is he listening to the backstreet boys?

by PJisJesus January 6, 2008

Derper

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."

by Chrilerper September 7, 2008

Derper

A herpderper.

Derper is herpin' & derpin' all the ding dong day.

by herpderper420 August 22, 2011

Derper

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

by asdfsdagasdgdsagfdgsadfgewasvc August 10, 2012

Derper

Derper is a word the same as spastic or retard.

These derpers have not got a clue what’s going on.

Be quiet you derper.

by Viking990 June 12, 2018

derper

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!"

by harry couter February 25, 2009