Derpfest 

A period of time where everything and everyone involved is acting like a complete derp.

I stopped playing Zelda cause the Water Temple was such a Derpfest.

Derpfest by WeOwnTheNite May 10, 2011

derpestrian 

A stupid pedestrian.
- Hits the Walk Signal more than once.
- Crosses without a crosswalk at heavy traffic, usually stranding himself on an "island" for many minutes.
- Has not mastered the art of jaywalking.
- Crosses in front of a car who finally gets a break in the traffic he's been wanting to merge with.
Term can be thought of as DERR-pestrian or fake-German like "der pest-rian."

Motherfuckin derpestrian!! Crossin' however you please just 'cause you know you could sue me if I hit you. Bitch.

derpestrian by Douglas Young November 13, 2007

Derpiest 

Noun: A word used to explain a situation as being extremely out of the ordinary.

my PC is probably the Derpiest computers ever.

Derpiest by Gamerdude31 June 26, 2010

derpfist 

a derpfist is a person who does something incredibly stupid.

another way to say "retard"

person 1: that guy left his wallet in his unlocked car!
person2: what a derpfist.

derpfist by thedo0d June 19, 2009

Derpfect

A hybrid of Derping and Perfect.
Usually used when someone says something extremely idiotic but genius at the same time.
Also used to rhyme for no reason when someone else used "perfect".

"Lettuce speak of this matter, son."
"Derpfect, I want to kill myself."

Derpfect by Dr. Sun April 17, 2018

fuck derpest rainbow day 

on july 19th everyone in the 88.89% furries groupchat has to fuck derpest rainbow because hes a bitch

hey bro did you know its fuck derpest rainbow day

fuck derpest rainbow day by goobernut69 July 10, 2022