A fork of Rural Dictionary
Mostly used on meme generators to make fun of celebrities. Specifically Miley Cyrus because she herps her derp like yeah.
Nodding mah head like yeah, herpin mah derp like yeah.
1) When someone gets excited playing a card game (ie Monopoly Deal) and spills food on themselves.
Dammit, you spilled food again! What a Derp Mah