look up any word, like timebomb:
 
6.
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
 
36.
Exclamation used during shitty situations.

"derp" is not yelled, but simply said.

Used instead of yelling "FUCK" or "GOD DAMMIT".

Shockingly, "derp" releases stress, anger, and sadness better than yelling and cursing.

Opposite of merp.
Imagine this. Getting lost during a road trip. You become extremely hungry. For whatever reason, you have a strong craving for Chick-fil-A, and refuse to stop anywhere else. You set your TomTom to the nearest Chick-fil-A, but is on his period and sends you to mother fucking Disney World instead. When you finally find a fucking Chick-fil-A, it's closed and you remember that it's Sunday.

"derp"
by ShredGnarShark July 06, 2012
 
37.
When you don't know what you're doing, or will do.
GF: What are you doing?
BF: *at home, doing nothing*:Derping it
Gf: Ok, well let me know when you're finished cleaning.
BF*thinking*: Dumb Bitch...She's gonna clean it.
by gigamar February 01, 2012
 
38.
Someone who thinks that the joke:
"Why did the witch ride her broom?"
"Because her vaccuum was too heavy!"

is worth laughing about.
That Linda is such a derp for laughing at that joke.
by Courtney_Elizabeth2013 January 29, 2012
 
39.
A literary or spoken phrase that combines elements of "WTF" and "cool story bro". Laced with condescension "derp" is a common form of web-based libel that is almost didactic; however not quite as it is generally a sardonic gesticulation rather than moralistic chastisement. The spoken sense of the world itself conveys an intrinsic feeling of disappointment with a subtle hint of disgust and an overtone of rebuke.
Joel: "I'm a lyrical genius!"
Devon: "Derp."
by Jove Lenod December 06, 2011
 
40.
Universal word that can mean anything.
"That was derping awesome"

"Teach me how to derp, teach me-teach me how to derp"

"Go derp yourself you derping piece of derp!"

"Derp you!!"
by JvMarsh November 20, 2011
 
41.
The universal replacement for any words.
"dude, stop being such a baby" - "dude, stop being such a derp"

"you've got to be f**king kidding me!" - "you've got to be derping kidding me!"

"did you end up going to the party last night?" - "did you end go going to the derp last d'dd?"
by Derpady Derp August 30, 2011
 
42.
a stupid act committed by an individual which is regretted in retrospect.
passing out with your shoes off at a party is considered a MAJOR derp
by ferral penguin June 26, 2011