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
South Florida expression: Noun: one who screws up majorly. Verb: to screw up majorly.
Noun: I forgot to kill the cat. I'm such a derp!
Verb: I didn't kill the cat. I derped!
by Colon Farrell March 30, 2015
noun- A slang phrase to say or include when the topic being discussed is random, funny, or really stupid to the point that it is hilarious.
"I'm publishing this really funny picture of a chicken"
"You should caption it with derp, that will make it at least 5 times funnier!"
by DerpyCoal March 05, 2015
an expression of stupidity (noun)
an act of stupidity (verb)
AJ Fleming loves to say derp; one of his favorite things to say is "Obama derped up the government."
by Avrum F., my fake name March 09, 2012
a person who acts strange,weird, and/or random, usually quite fun to be around due to the fact that this person is an oddball and does and/or says interesting things.
derp: -randomly shouts in the middle of the sidewalk- "Who put this beaver in my pillowcase!!!!"

-friends laugh and giggle-
by chaosweapon1 March 12, 2011
A word that can mean many different things; usually negative. It can be a noun, verb and adjective. Synonyms include stupid, retarded, idiotic, idiot, dumb etc...

Variations of the word include derpy, derped, derpette, derpity der hurrrr. Herp is also related to derp and usually follows derp in a derpy interjection. Herping is almost always a verb, and when in combination with derp it does not have to be negative.
Noun: "Wow, that guy is a derp"
Verb: "Wow, that guy just derped everything up"
Adj: "Wow, that guy is derpy..."

Misc examples:
Person A: "Derp de durrrr... herp derp?"
Person B: "Herpity derp hurrr... Derp derp?"
Person A: "Hurrr :/ "
by FecesExplosion January 24, 2013
1, an exclaimation made after a moment of incredible stupidity or massive failure.

2, a facial expression with crazy eyes and a stupid lip.

3, when accompanied by a " :3 " indicates happy moment, or blushing with out making the user feel as stupid as they would if they wrote *blush*
guy 1 "she's fiiiiiiine, think I'll get any tonight?"

guy 2 "she's a lesbian."

*derp*
by omnomnomkittiez January 08, 2011
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