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.*

Ex. 3 Jennifer Lawrence Queen of Derp trended on Twitter worldwide. (FACT)
by Swim-on-and-on-and-on.... September 07, 2012
derp is the same as lol, except derp can be used in more fail situations
by ZUhhh August 26, 2009
An akward purple-blue.
...That flower is... a rather akward purple blue..



Derp, that's the color.
by Brad Robley July 17, 2009
A word uttered when performing a particularly easy frag in a multiplayer combat game such as halo or unreal tournament.
(Player 1 spots player 2 trying to hide under a set of stairs, facing east. Player 1 approaches from the west and pops player 2's melon with a particularly high-powered weapon.)

Player 2: Aaaahgh...
Player 1: DERP!
by cyomega April 14, 2004
Stupid; retarded in a very funny way
That derp ahh nigga hunta
by KkRuNk March 30, 2008
derp is just a funny noise that can be used to replace pretty much any word.
"Oh man, what a derp."

"I totally derped it on Tuesday."
by Jimy March 30, 2005
Similar to the word snubba derp is a word that can be used for anything and everything.
What the derp did you just do.

Whats a matter to Derpped for you.

Will you derp the hand in that butter.

Derp it till it bleeds.

Derp is the epidimy of retarded comedy.
Dude you shat yourself while riding the roller coaster!? thats pretty Derp man
by alekinchains December 12, 2007

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