Mostly used on meme generators to make fun of celebrities. Specifically Miley Cyrus because she herps her derp like yeah.
by herp ba derp derp July 13, 2010
Get the herpin mah derpmug. by Howwwwww January 11, 2012
Get the Derp Mahmug.
Get the herpin mah derpmug.
Get the Derp Mahmug.