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1 definition by the derps

 
1.
a noise that you make when you don't know what else to say
Sarah: Hey herp derp
Yaara: Derp nerp herp
Sarah: i know...
Yaara: derp.

Person 1: i just stepped in poop
Person 2: you're a derp
Person 1: yerp
by the derps April 27, 2011