Herp Derp (also known as Harp Darp) is a rage comic face and an expression used to indicate that someone is unintelligent or making ignorant statements.
On May 11, 2010, the first rage comic utilizing "Herp Derp" named "Rage Comic FFUU" was uploaded to Reddit by user ULJarad. 5 months later, another user on Reddit made a post "Harp Darp pooped on my car." Harp Darp/Herp Derp has become the meme name, due to this post.
- This memes' name is derived from the internet slang "derp."