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
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Dirty Sanchez Plush

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2
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
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Cleveland Steamer Plush

The vengeful act of crapping on a lover's chest while they sleep.

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3
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
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Cleveland Steamer Plush

The vengeful act of crapping on a lover's chest while they sleep.

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4
Something idiots say. Usually it is supposed to indicate stupidity in somebody else, but the person saying it is usually the dumb one.
by Turbo_Phoenix April 26, 2011
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Cleveland Steamer Plush

The vengeful act of crapping on a lover's chest while they sleep.

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6
Alex: I'm bored. Herpderp.
by SOMEONE WHO IS MIPPIN March 23, 2011
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Golden Shower Plush

He's warmer than you think.

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7
A rage face showing expression of dumbness or suprising.
Hey, look, it's the herp derp face!
by superworddude May 16, 2014
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Cleveland Steamer Plush

The vengeful act of crapping on a lover's chest while they sleep.

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