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90.
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
 
64.
Someone working at the supermarket who pushes around cart's.
Hey, there's a derp pushing around carts all day!
by MSTJ September 27, 2010
 
65.
A word used after a stupid joke, or stupid slapstick. It was first used in the South Park episode "The Succubus," but popularized by later episodes. Commonly used to refer to jokes in Rob Schneider movies.
Rob Schneider derp da derp! Then, derp da derp ta tittily tum.
by Frank DuBarge December 01, 2007
 
66.
The act of being as stupid as shit from time to time.
Person A: .......
Person B: HEY!
Person A:......
Person B: HEY ARE YOU LISTENING TO ME!?
Person A: Huh!? What!?
Person B: HOLY FUCK YOU ARE SUCH A DERP!
by hatederpingaround December 19, 2012
 
67.
A word used for no purpose whatsoever.
(Commonly used before "Herp a Derp")
Derp relations: Other words related to derp. Examples: Herp a Derp, Merp, Burp, Derpity, Derp Sauz, Derpapottamus, Derpalophagus, RageDerp ETC.
Can be used in a Derp Train... A endless repeat of derps and derp relations.
Person 1: Derp
Person 2: Herp a Derp
Person 1: Derpity Sauce
Person 2: DERPAPOTTAMUS
Person 1: Well F**k Dat.A MERP A MOTHER F**KING HERP A DERP!
Person 2: RageDerp much?
by commandotaco June 17, 2012
 
68.
The most versitile word in the english language
Your derpin!
thats sooo derpin
derp derp derp derp derp derp.
by Derp1701 March 21, 2012
 
69.
Is a word that describes a particularly retarded face: A retarded smile, and the eyes pointing in different directions aswell as a wierd fraze such as...Derpdy
Normal person: "Hey, whats up?"

Connor White: "Derp herpa flerp merp der gerp"

Normal person: "Speak normal you derpy dick"

Connor White: "DERPPPPPPPP"

Normal Person: "Calm down"

Connor White:"wa"
by Hammond511 March 14, 2012
 
70.
Verb. Used in the phrase: "Derping around on the Internet"
Definition: Spending large amounts on time on Gaiaonline.com
Person 1: What are you doing?
Person 2: I am derping around on the Internet!
by Demmon1 March 03, 2012