Derf

1. When someone accidentally calls you anderf when your name is Andrew and it sticks forever

2. A really fucking dumb and weird boy

1.yo derf

2. That kid is such a derf

by Djalma si December 4, 2017

Derfed

Gettind owned, hazed, roasted, loosing in a humiliating way.

You just got derfed!

by Freddy777sw December 11, 2017

derf

a derf, otherwise know as an idiot is used when someone is being stupid (an idiot)

“Quick being a derf, ya derf”

by derf14 June 29, 2019

Derf

Someone who isn't very smart, and gives you the constant urge to want to hit them in the face with a toy Nerf gun when you look at them or when they speak.

Ugh! Ray annoys me everytime I hear him talk! He's such a derf, I swear!

by Hustle_OnFleek December 28, 2022