A word dumb children use to make themselves seem cool inside of their circle of internet friends. Although, the younger generations have already started saying this word outside of the internet making them look even more retarded than they already are.
The only example I can give is for you to go derp at yourself in the mirror.
by Goddddddd September 24, 2012

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To have a retarded face, or expression causing others to find it funny, creepy or just plain stupid.
Ex. 1 Jennifer Lawrence is the queen of derp because of the faces she makes.

Ex. 2 "I'm bored."
"Me too."
*Awkward silence.*
"Derp."
"Yeah..."

Ex. 3 Jennifer Lawrence Queen of Derp trended on Twitter worldwide. (FACT)
by Swim-on-and-on-and-on.... September 07, 2012

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A word that means pretty much nothing. Something to say when there is nothing to say. It goes with the word Herp which is essentially the same thing.
Mayumi: Derp
Yuuma: I am going to make "derp" into a real word!
People watching: Herp Derp
by Mayumi Bloodraine July 10, 2012

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Exclamation used during shitty situations.

"derp" is not yelled, but simply said.

Used instead of yelling "FUCK" or "GOD DAMMIT".

Shockingly, "derp" releases stress, anger, and sadness better than yelling and cursing.

Opposite of merp.
Imagine this. Getting lost during a road trip. You become extremely hungry. For whatever reason, you have a strong craving for Chick-fil-A, and refuse to stop anywhere else. You set your TomTom to the nearest Chick-fil-A, but is on his period and sends you to mother fucking Disney World instead. When you finally find a fucking Chick-fil-A, it's closed and you remember that it's Sunday.

"derp"
by ShredGnarShark July 06, 2012

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A word used for no purpose whatsoever.
(Commonly used before "Herp a Derp")
Derp relations: Other words related to derp. Examples: Herp a Derp, Merp, Burp, Derpity, Derp Sauz, Derpapottamus, Derpalophagus, RageDerp ETC.
Can be used in a Derp Train... A endless repeat of derps and derp relations.
Person 1: Derp
Person 2: Herp a Derp
Person 1: Derpity Sauce
Person 2: DERPAPOTTAMUS
Person 1: Well F**k Dat.A MERP A MOTHER F**KING HERP A DERP!
Person 2: RageDerp much?
by commandotaco June 17, 2012

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A word used by a narrator who doesn't want to show /don't remember the identity of a character fom the story that he tells...The word was created and used frequently by 9gagers...users of 9gag.com for shorter and funnier storyes
"So i was with my friend Derp at this super cool club and there were so much cool people derping around.."
by 9gager February 28, 2012

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When you don't know what you're doing, or will do.
GF: What are you doing?
BF: *at home, doing nothing*:Derping it
Gf: Ok, well let me know when you're finished cleaning.
BF*thinking*: Dumb Bitch...She's gonna clean it.
by gigamar February 01, 2012

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