a stupid person, or action
"Danny, your being a huge derp right now.
de MrSexy282 21 mai 2010
Derp- a caption used on silly pictures such as memes.

A word to say after saying something stupid, or derpy.
A word meaning stupid.
Me: "Did u know that butter is a vegtable!?!"
Hater: "No it not you derp!"
Me: "oh, ok"
de TheAllyDerp 7 mars 2014
One who, in an argument, takes a position, and when that position is destroyed by evidence and well-reasoned argument, acts as if the reasoned argument never happened, instead sticking to his original position while resorting to logical fallacies such as bad math, unwarranted assumptions, appeals to emotion, wishful thinking, false and deliberately misleading data and analysis, or ad-hominem attacks on his opponents. One who argues in bad faith.
Paul Ryan is a derp.

Salim Furth is derpy. Can put links here, search on yes-europe-really-is-in-the-throes-of-austerity

Avik Roy exhibits derpitude. Search New Republic. Search also Krugman blog bad-faith-and-civility-health-care-edition: "If someone says the sky is green, you prove that it’s actually blue, and the next day he comes back once again insisting that the sky is green, and this happens repeatedly, you eventually have to acknowledge that mannerly debate about the color of the sky just isn’t enough; you have to go meta, and talk about the fact that this guy and his friends just aren’t in the business of honest discussion."
de H. Rider Haggard 7 juin 2013
A word that can mean many different things; usually negative. It can be a noun, verb and adjective. Synonyms include stupid, retarded, idiotic, idiot, dumb etc...

Variations of the word include derpy, derped, derpette, derpity der hurrrr. Herp is also related to derp and usually follows derp in a derpy interjection. Herping is almost always a verb, and when in combination with derp it does not have to be negative.
Noun: "Wow, that guy is a derp"
Verb: "Wow, that guy just derped everything up"
Adj: "Wow, that guy is derpy..."

Misc examples:
Person A: "Derp de durrrr... herp derp?"
Person B: "Herpity derp hurrr... Derp derp?"
Person A: "Hurrr :/ "
de FecesExplosion 24 janvier 2013
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.
de gigamar 1 février 2012
Universal word that can mean anything.
"That was derping awesome"

"Teach me how to derp, teach me-teach me how to derp"

"Go derp yourself you derping piece of derp!"

"Derp you!!"
de JvMarsh 20 novembre 2011
when ones eyes go every which way. Usually dogs such as pugs derp.
whats wrong with your dog? Her eyes are going everywhich way.

dude. shes just derping.
de derpderpdog 19 juin 2010

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