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. by InfamousJonah December 16, 2017
Get the A Derpidy Derpmug. by Orson Kart(do you get it?) July 6, 2021
Get the sub derpmug. 1; Holy crap, Ka-derping is the most amazing, vigorous, complicated activity ever!
2; Madison is the Ka-derping Queen!
2; Madison is the Ka-derping Queen!
by Starrelle June 19, 2011
Get the Ka-derpingmug.