Herpderpes 

Herpderpes is a sexually transmitted case of stupidity, symptoms of this include general herping and derping, and is not limited to brain farts and mind queffs. Can be extremely contagious during the early onset of the disease, and has no cure.

John, do you have herpderpes, everyone around you seems to be getting stupider

Herpderpes by mackattack3345 March 11, 2011

herpderpt 

When two people from different cultures get married and have and outdoor ceremony, and the pasture is Jewish.

Man that herpderpt made me cry!

herpderpt by JumperJax April 1, 2017

Herpderpington 

A Herpderpington is an individual who enjoys photobombing people's photos by making the typical Herp Derp face (or equivalent). This can either be done as a joke to be funny, or done to be an asshole. Usually, Herpderpingtons act as a group, so the name comes from a play on words on a family name or last name.

It is also the official title for those who herp derp.

Some of my friends were photoboothing before class when suddenly the Herpderpingtons photobombed us.. but the picture ended up being really funny!

Herpderpington by abtuba2010 June 6, 2011

Herpderp 

Another way of saying duh.

Stacey: I ordered the food, it will be here in 10 minutes.
Louise: okay when will it be here?
Stacey:herpderpderpderpdurrrr.

Herpderp by TheObieOne May 10, 2010

Herpderpia 

A town or city full of herp derps.

He lives in Upper Herpderpia with all those other dipshits.

Herpderpia by King of Herpderpia June 29, 2010

Herpderp 

A word used for complete randomness.

Alex: I'm bored. Herpderp.

Herpderp by SOMEONE WHO IS MIPPIN April 8, 2011

HerpDerpNervania 

When people around you act dumber or wierder than usual

Teacher:Whats 2+2?
Derek:........
Tom:its 4 you must be out of it derek

Henry:Dude i was making out with this pole I MEAN GIRL...
Tom:Um okay.....

Lenard:MAN IM SOOO AWESOME LIKE IF THERE WAS A POTATO FOR EVERYTIME I WAS AWESOME I WOULD BE POTATO
Tom: Okay there has to be some herpderpnervania going around

HerpDerpNervania by dequaDeck February 26, 2013