herpy-derpy 

uselesss; nonsense.

None of your herpy-derpy talk!

herpy-derpy by uttam maharjan June 28, 2011

Herpy Derp Day 

Sarcastic synonym of 'good job' or 'nice one'. Obviously can also be used to wish someone happy birthday, but generally the term is derogatory.

Person 1: I didn't wet the bed last night!
Person 2: ...Herpy Derp Day to you.

Herpy Derp Day by Uthislith December 5, 2011

Herp Derp 

An expression used when a person, or yourself, has done somthing extremely stupid and dopey

Person 1: Dude, I just hit my head on the door.
Person 2: HERP DERP.

Herp Derp by Kommandant November 25, 2009

herpa derp

Used to express the stupidity of a given situation.

You put the bread in the fridge? Herpa derp.

herpa derp by Figure .10 October 16, 2010

Herp derp 

When two people from different cultures have an outdoor wedding and the person officiating is Jewish.

That wedding was a total herp derp.

Herp derp by Jexlar January 7, 2018

herp-derp 

the answer for every physics problem according to idiot hipsters that think they are so cool

Q: What is the force of gravity?
A: herp-derp
Teacher: you're a moron

herp-derp by what??oh i get it . . . kinda October 8, 2011

herp derp 

Something idiots say. Usually it is supposed to indicate stupidity in somebody else, but the person saying it is usually the dumb one.

Herp derp look at this noob.

herp derp by Turbo_Phoenix May 17, 2011