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
The action of pure randomness and retardation.
Guy 1: My entire family just died!!!!
Guy 2:..........derp!
by itzadolfin!! May 10, 2011
An incurable disease, at least until the introduction of Duck Sauce's "Barbra Streisand" with a combination of yelling "Unf Unf Unf" between two mirrors.
Kindoflike Bloody Mary three times, but this one actually works. 50% of the time.

It is known to afflict a certain Jason Liu's face constantly (See "Jason Liu" for more information)

Commonly associated with "Herp"
DocMo: "Hi what's your name?"
Jason: "Derp"
DocMo: "Barbra Streisand"
Kenja: "UNFUNFUNF"
by kendaninjabinja May 02, 2011
Symbolizing a retarded face, look, etc., making fun of it.
Im the Joker, Batman! DERP!
by BATMAN DERP February 06, 2011
Sound simultaneously expressing supreme dorkiness and excitement of boston terriers.
derp, derp, derp (repeat until satisfied)
by BT Supreme January 20, 2011
a totally ridiculous person who abbreviates all their words and says that they have a ghat. popular sayings are nahnahnahnah and wanna die? Derps tend to live in basking ridge. subjects often say wheres ma ghat? they will also ask for qual rides to chip after prac whichs translates to quality ride to chipotle after practice. a list of common abbreviations are garb = garbage, ridic= ridiculous, imposs= impossible, ment= mental
Ridge Hockey Team, Derp Dan
by nyjets28 January 19, 2011
10. Something obvious.
Person #1: What?

Person #2: I love you, that's what. Derp! :P
by Inaia December 18, 2010
N. 1.Epic fail. An attempt at something of extreme greatness, but an utter fail. Antonym: Herp. 2. An expression used in the act of failing, often an exclamation. 3. The name for someone/thing that has failed.

V. Sucking really hard.
N. 1.
1: That guy ate it so hard on that triple pirouette.

2: I know, right?! What a derp.

N. 2.
1(while belly-flopping into a pool): DERP!

N. 3.
1: You honestly tried to pull off cooking 30 brownies in 20 minutes? You fucking derp.

V.
1: Have you ever herped so hard you derped?
by RadioactivePuppy October 26, 2010

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