A saying, spoken out loud, while acting as a slow or mentally challenged person when someone makes an incorrect action or is unwillingly blind to something obvious.
by Pink Clay doh April 6, 2010
Get the Erpa Derpmug. by Werty27 May 12, 2011
Get the Purple Derpmug. by mmmmmhm October 19, 2010
Get the Herp Derpmug. Is a word that describes a particularly retarded face: A retarded smile, and the eyes pointing in different directions aswell as a wierd fraze such as...Derpdy
Normal person: "Hey, whats up?"
Connor White: "Derp herpa flerp merp der gerp"
Normal person: "Speak normal you derpy dick"
Connor White: "DERPPPPPPPP"
Normal Person: "Calm down"
Connor White:"wa"
Connor White: "Derp herpa flerp merp der gerp"
Normal person: "Speak normal you derpy dick"
Connor White: "DERPPPPPPPP"
Normal Person: "Calm down"
Connor White:"wa"
by Hammond511 July 31, 2012
Get the Derpmug. When your partner is giving you a handjob but stops because there hand cramped and there to time to finish. Hi
by Themaxx64 January 21, 2018
Get the hand derpsmug. The act of failing epicly at something, especially when you forget exactly what the heck your doing in the wrong room of the house
Bob:"I just had a total herpty derp moment there."
Jim:"Wat?"
Bob:"I forgot what the hell I was doing there."
Jim:"oh."
Bob:"DERP"
Jim:"Wat?"
Bob:"I forgot what the hell I was doing there."
Jim:"oh."
Bob:"DERP"
by PatrickFails139 July 2, 2014
Get the herpty derpmug. by InfamousJonah December 16, 2017
Get the A Derpidy Derpmug.