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22.
when ones eyes go every which way. Usually dogs such as pugs derp.
whats wrong with your dog? Her eyes are going everywhich way.

dude. shes just derping.
por derpderpdog 19 de Junho de 2010
 
23.
one that expells an action of a complete and total fail
*Person 1 tries to walk up the down escalator*
Person 2: DERP!
por DerpYou 07 de Fevereiro de 2010
 
24.
Australian. Abbreviation of underpants.
Johnny busted Sarah wearing only her derps.

In summer, I sleep naked apart from my derps.
por spruce_goose 22 de Junho de 2005
 
25.
A word utterred when one screws up. origin: Matt Stone and Trey Parker in BASEketball. Used as an interjection.
(Imagine a scene where a guy is sniffing a girl's underwear, only to discover it is her mom's) DERP!
por Broc 06 de Março de 2004
 
26.
As used to describe a person who acts like, well....like a Dumb Egotistical Retrograde Prick. Give 'em a hammer. They'll do the rest.
This guy is a total DERP.
por mtnmedic 08 de Janeiro de 2014
 
27.
A sexual act where one inserts their tongue into another's anal canal.
"Dude, I totally derpped that girl."

"Wanna derp?"

"We were derpping each other."
por iBanged Zooey 19 de Novembro de 2013
 
28.
To have a retarded face, or expression causing others to find it funny, creepy or just plain stupid.
Ex. 1 Jennifer Lawrence is the queen of derp because of the faces she makes.

Ex. 2 "I'm bored."
"Me too."
*Awkward silence.*
"Derp."
"Yeah..."

Ex. 3 Jennifer Lawrence Queen of Derp trended on Twitter worldwide. (FACT)
por Swim-on-and-on-and-on.... 07 de Setembro de 2012