Herpes.
Fuck a ho and you might just get the herp a derp.
by timmy9999 June 01, 2011

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Top Definition
Used to express the stupidity of a given situation.
You put the bread in the fridge? Herpa derp.
by Figure .10 October 12, 2010

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1: A way of saying that something is/sounds stupid. 2: A mean thing to call retarded people.
1: Ya that'll work herp a derp.
2: Haha, look at the herp a derp's helmet.
by That guy over by the icecream November 20, 2010

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someone who is often made fun of due to her stupidity and obliviousness to her surroundings, is always the topic of any joke, gets made fun of constantly, trips and screams at least 200 times per day, is scared of feet. She's a total fuck but is loved by her group of friends :)
Herpaderp watch out for that door!
by gewber09 November 20, 2010

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Another, lesser known name for a special person. Meant to be as offensive as the word retard. Though it can be used as universally as the word "fuck" such as "Quit being a such herp-a-derp" or "go be a herp-a-derp somewhere else". however the word can be butchered to be simply "herp" or "derp". Although some "herp-a-derps" will reverse the word and say "Derp-a-herp". Saying "Herp-a-derp" as a question changes the meaning to "A retard?" or "That Retard?".
"you herp-a-derp", "Herp-a-derp?", "What the Herp-a-derp?",
by ShadowMaster924 April 12, 2011

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Combination of Herp and Derp with added a in the middle
Herpaderp i'm a downie
by Anton Mussert December 09, 2011

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An expression made to mock the stupidity of others.
Joey: "Oh, wait... So you can't walk on the clouds?"
Steve: "Herpaderp!"
by MystM July 06, 2013

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the dance move in which the legs are bent, in a squat, bringing the butt very close to the floor, and arms move around retarded-ly.
Katrina: Hey! Look at Dalia! She's doing the herpaderp!

Amir: What a retard.
by ka96 July 02, 2011

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