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A derp is the guy in the bright clubby striped shirt who waits in line for 2 hours to get into, well, a club. Granted, it’s nighttime, but the derp still wears the euro-trash sunglasses. The derp has far too much pomade in his hair. On top of this, the derp acts like he is a member of high-society, when in fact the derp is actually just high-maintenance white trash.
let's get out of this bar, it's loaded with derps.
by fycfan#1 March 31, 2005

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noun- A slang phrase to say or include when the topic being discussed is random, funny, or really stupid to the point that it is hilarious.
"I'm publishing this really funny picture of a chicken"
"You should caption it with derp, that will make it at least 5 times funnier!"
by DerpyCoal March 05, 2015

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Making a stupid face
William made a derp face
by xmilisnotonfirex February 19, 2015

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just something random that you say
"DERP"
by jfnvbghdfjvbjfgbjdnjghdbtk January 03, 2015

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A huge and dramatical case of retardation
Derpy derp derp
by Derps October 26, 2010

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A word utterred when one screws up. origin: Matt Stone and Trey Parker in BASEketball. Used as an interjection.
(Imagine a scene where a guy is sniffing a girl's underwear, only to discover it is her mom's) DERP!
by Broc March 06, 2004

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a funny looking dumbshit with no swag.
look at this derp
by bigbenji96 July 07, 2015

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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 :/ "
by FecesExplosion January 24, 2013

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