Explain the word "derp" to the unhip among us?

[Coluber42]

I'm afraid this question probably reveals me as an out of touch, uncool curmudgeon with as much of a clue about pop culture as my ball python has.... but what's the scoop with the word "derp"?
This forum was the first place I encountered it, so I assumed it came about just because it rhymes with "herp". It appears to means silly or dorky, or maybe clumsy or dopey as applied to a spider with a wobble? But then I noticed it used in other places where there is no herp context that I can see.
So, errr, explain it to me? Or is this just one of those things that being over 30 disqualifies me from ever understanding?

[Stormy]

I'm afraid this question probably reveals me as an out of touch, uncool curmudgeon with as much of a clue about pop culture as my ball python has.... but what's the scoop with the word "derp"?
This forum was the first place I encountered it, so I assumed it came about just because it rhymes with "herp". It appears to means silly or dorky, or maybe clumsy or dopey as applied to a spider with a wobble? But then I noticed it used in other places where there is no herp context that I can see.
So, errr, explain it to me? Or is this just one of those things that being over 30 disqualifies me from ever understanding?

Well I'm in my 50's and I take it to mean stupid or silly. Kind of like saying "duh!"

[piedlover79]

Derp had been around for a bit. It's a variation of 'dur'. It's a word you use to describe a stupid act or mistake. Also see: derp face which is a slack smile cross eyed expression made when you recognize a stupid mistake. It has nothing to do with Reptiles.

[bcr229]

It comes from "derpy", meaning foolish or silly. That flowed naturally into the alliteration "herp derp", to describe pictures like this one of my retic...

[kxr]

Yep that is definitely a deeply retic picture

[Coluber42]

Heh, thanks guys... and to think I thought it had something to do with herps.