Something idiots say. Usually it is supposed to indicate stupidity in somebody else, but the person saying it is usually the dumb one.
Herp derp look at this noob.
by Turbo_Phoenix April 26, 2011
Top Definition
An expression used when a person, or yourself, has done somthing extremely stupid and dopey
Person 1: Dude, I just hit my head on the door.
Person 2: HERP DERP.
by Kommandant November 25, 2009
Another way of saying duh.
Stacey: I ordered the food, it will be here in 10 minutes.
Louise: okay when will it be here?
Stacey:herpderpderpderpdurrrr.
by TheObieOne May 10, 2010
the answer for every physics problem according to idiot hipsters that think they are so cool
Q: What is the force of gravity?
A: herp-derp
Teacher: you're a moron
Herpderp is the smell of herpadermis.
Being able to smell ones face in the case they have herpes of the face.

The process of facial screening before sexual intercourse of the face
"i had to herpderp her face with my tongue to make sure she was clean
by HerbDerby July 26, 2010
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