derpcaps 

1. When capital letters are used in sentences randomly, accidentally, or in places that are unnecessary, in a way which is annoying.

2. When someone is typing with the caps lock on without noticing, demonstrating extreme noobishness.

Guy: hEY EVERYONE. jUST GOT THROWN OUT OF mED CUZ i KILLED A CHIHUAHUA.

Grammer Nazi: Dude, derpcaps!

derpcaps by theguywiththesunglasses November 24, 2010

Derpbate 

To persist with an argument (typically on the internet) to the point beyond diminishing returns with the persistence of idiocy. A derpbate often involves two parties (often on the internet) in mild-to-extreme disagreement repeating each others points with slight modification in response to one another. A portmanteau of "Derp" and "Debate."

Sunday, sunday, SUNDAY, watch the socially inept Randroid debate the campus Communist in the CAGE on a politics forum! You do not want to miss one excruciating line of this ten hour derpbate!

Derpbate by HeySeuss November 13, 2011

Derpiful

beautiful of the derps, the ultimate level of derp

derpina is derpiful

Derpiful by Derpmere December 21, 2013

derptheist 

An atheist or agnostic who doesn't know the basic scientific theories as to why intelligent design cannot exist.

"Joe is a derptheist. He cannot even explain the Big Bang and why God is implausible."

derptheist by Amy_S March 27, 2019

Herpus Derpicus 

An insulting name, given to a person who is very unintelligent, and possibly quite ugly.

Oh great, I feel really safe now that Herpus Derpicus has my back.

Herpus Derpicus by ThunderxCloud November 13, 2010

Derpy

Being just the slightest bit off. Having a clumsy way about it.

" That squirrel is running sideways, he's pretty derpy."

" Kristen Stewart's facial expressions are so derpy, it's painful to watch."

Derpy by UnicornPornHorn March 30, 2015

Derper 

The language in which the ends of certain words and/or syllables are replaced with "-er" to provide an enriching and fulfilling sentence.

"Sclerper derper?"
"Actually, flerper derper skerper, indeed."

Derper by Chrilerper September 7, 2008