from Wiktionary, Creative Commons Attribution/Share-Alike License

  • interj. Draws attention to an act of foolishness or stupidity.
  • interj. placeholder for unimportant details, blah blah blah
  • v. To act stupid or foolish
  • v. To make a stupid mistake
  • v. To point in different directions; (of a person) To have a facial expression with one's eyes pointing in different directions.


from Wiktionary, Creative Commons Attribution/Share-Alike License

This definition is lacking an etymology or has an incomplete etymology. You can help Wiktionary by giving it a proper etymology.



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  • "English has no word for "the constant, repetitive reiteration of strong priors". Yet it is a well-known phenomenon in the world of punditry, debate, and public affairs. On Twitter, we call it "derp"." NoahPinion Blog

    March 26, 2017

  • I'd like to thank the OED for immortalizing this word.

    August 28, 2013

  • I like to think that I invented the word 'derp' while playing Team Fortress 2 and saying crap into the microphone.

    Nowadays, it's used in place of D'oh!

    *edit , no I didn't coin this.Wiktionary has early citations.

    January 6, 2013