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The word derp actually derives from the acronym D.E.R.P which stands for the "Disgruntled Employee Retaliation Program" and is used when you are intentionally causing a job related derp. Derping is considered a verb.

The act of "derping" or "D.E.R.P-ing" can either be physical or verbal in nature and is always done intentionally... or maybe not if you're lucky.
Examples of derping are as follows:

1. Peter, Samir and I took the company car to lunch yesterday and in the act of derping we almost had all four wheels of the car off the ground. It was awesome!!!

2. You hate your job so much that you keep breaking the copy machine intenionally, but of course nobody knows this. ...Unfortunately, this will often lead you to overhear the statement "I hate this printer it never freaking works."

3. Someone hates their job at the Hamburger Hut so much that they like to tell people Hamburger Hut undercooks the beef patties just so people won't eat there.
by meesolab November 14, 2010

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Anal sex with a horse.
"Dude... he just derped.."
"...That wasn't a horse.. That was paris hilton."
by Macie Land September 21, 2011

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Derp is a word used to describe a complete idiot. One good example would be Joe Dejesus, arguably the biggest Derp known to mankind. Other names he goes by are, Joe Skinhead, Milky and King Derp.
Example: "I've never lost a fight in my life" - Joe Skinhead
This statement makes him a Derp because he has gotten his ass beat multiple times.

Example 2: Joe Skinhead brags about everything. Thinks he knows everyone in every band, Thinks he knows everything about everything, thinks knows everything about the music scene.

Example 3: Enjoys Justin Beiber but claims to be a skin.

Example 4: Fat girlfriend

Example 5: mommas boy, plus mom and girlfriend call him Derp.

Example 6: humble and working class skinhead driving his moms cadillac

E
by Candrababy1991 June 25, 2011

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The face made by Gerard Piqué of Spain (a.k.a. The Herp Derp King).
Piqué is herpderpin' at the World Cup.

-Piqué sees a ball-

Piqué: DERP!
by BEASTLYBEAST12345678901 July 27, 2010

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A comment, somewhat incoherent and illogical, that attempts to sound profound. Often a symptom of Obama Derangement Syndrome.
Politician: "Our opponent...is someone who sees America, it seems, as being so imperfect, imperfect enough, that he's palling around with terrorists who would target their own country. "

Sensible Viewer: "That is some considerable derp."
by Nebulious June 20, 2010

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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"
by Hammond511 March 14, 2012

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The vocal sound to describe a act of dumb, or a view/image of dumb, seen as a meme, and used on image boards(websites unlisted for certain reasons).
derp!
by Crausy December 31, 2010

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a derp is an unflattering photo of a person's contorted face taken by mistake
usually makes the person seeing the photo laugh and the person in the photo cry with shame
Google "derp" and try not to laugh.
by katherineeee! November 15, 2010

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