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 21, 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 13, 2011
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the act of pressing the door close button on an elevator when someone tells you to keep the door open
He got stuck in the lobby after that dickwad herp a derped him
by Rabbi Goldstein January 22, 2011
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The sound used to describe melee killing somebody in Halo: Reach.
First strike:Herp
Pull back:a
Second strike:derp
You should have seen me man! I ran up to this bitch and herp-a-derped him good!
by How is this name being used? October 17, 2010
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A woman who is cute but dumb; Herp: Cute girl; Derp: Dumb
GF: Umm... Derp. Let's go to the mall.

L: Kevin your girlfiend is a Herp-a-Derp....
K: No she isn't.
by Koowhipfluke October 25, 2010
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A skank.
Someone who gets around.
A girl with a very slutty background.
Herp-a-derp=girl with herpes or high possibility of having them!
Destiny is a herp-a-derp because she screwed everyone she dates.

Destiny is a herp-a-derp because she flirts with everyone and lets boys get a feel on without giving a crap.

Herp-a....derp!
by ArkansasHippie. January 23, 2011
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