a phrase used when someone makes a mistake, or says or does something stupid or ridiculous.
shannon: i wonder what frozen ice cream tastes like... ?

peta: derp
by A+inprocrastination June 07, 2011
A universal word for anything
"that movie was derping awesome"

"derp you"
by Thatsoontobebuffblackguy November 13, 2011
Degradingly erotic reproductive practices, recommended only for the most masochistic, wanton harlots. Subject usually has difficulty walking for like a day.
Shut yo' mouth and open yo' legs, bitch, yo' in for some srs derp.
by usernameunavailable November 09, 2011
When one is blazed and attempts to leave a party/chief session.
Yo guys, I gotta get home, boutta derp.
by dixon yamada October 01, 2011
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
The state of being cross-eyed and generally looking stupid, possibly with some showing of teeth for effect. Being derp can be voluntary or involuntary
You would be derp if you lost your retainer, were perplexed by something etc.
by Daraghderp November 13, 2010
Indicating retardation in both speech and thought; incomprehensible guttoral sounds intended as English predominantly spoken in the South. See also Southern Accent
Southerner: "Derp-de-DERP! Twang, twannnggg......"

Northerner: "WTF did he just say???"

Southerner: "Derp-de-DOOOO!!! Heheheh!"

Northerner: "Fuck it, I'll find I-95 on a map. Thanks anyway."
by Buck_Turgidson October 05, 2010
A person who may catch you while you're doing something that you're not supposed to be doing.
Look out! It's a derp! RUN
by MSTJ September 27, 2010

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