Erpa Derp

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.

Guy1: WHERE IS HE!?!?!

Guy2: In front of you in the bushes. ERPA DERP!

Purple Derp

A purple retard, or a purple mentally challenged person.

There is a purple derp down in Florida.

Herp Derp

A phrase said by idiotic morons who think they are cooler then they actually are.

HERP DERP. I AM SO HIPSTER.

Derp

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"

Dire Derp

Failed at something, messed up.

I put this post in at an angle, I did a Dire Derp.

meh, derp

Meh, derp means oh screw you i'm not gonna listen to your derpiness.

guy1 meh, derp
guy2 how mean of you!

guy1 just shut up derp
guy2 *cries in a corner*

Derp eye

Caused by a lack of masturbation

Krista has derp eye, must have been a while.