1) The sound of a Brain-fart, usually when a fairly smart person says something that's rather silly by accident or the wrong word or can't think of what to say.

2) Breaking something or crashing into something due to thinking too much.

3) Being silly and not caring what other people think of you. See dork
"It'd work better if you used contrasting colors. No, not contrasting -- Contrasting. Not contrasting! You should use contrast-gah! Do you know what I'm trying to say?"
"Complimentary?"
"Derp! YES! THANK YOU!"

"Did you hear the professor walked into a wall today while working on his latest thesis?"
"Ha! No I didn't. He's such a derp"
by mindthederpface March 28, 2013
derp is the same as lol, except derp can be used in more fail situations
Derp
by ZUhhh August 26, 2009
An akward purple-blue.
...That flower is... a rather akward purple blue..

Derp.

What?

Derp, that's the color.
by Brad Robley July 17, 2009
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
Stupid; retarded in a very funny way
That derp ahh nigga hunta
by KkRuNk March 30, 2008
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
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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