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

The number between 6 and 7

"Yo what's that number"
"Nigga, it's Derf"

by killingbird February 18, 2016

derf

derf is unit of measure that measures derfs

the equivalent of a derf is one derf

by lookandlineage January 1, 2021

Herfing the derf

It is discribed as "Fucking the fucked"; To have sexual intercourse with a fucked up person. May sound unusual in a way to make people just say: "Was that a threaten?" or Having no idea of what has been said..

DUDE!? I totally saw you and ashley herfing the derf with each other.

Parents: Did you do anything dirty in tha room?
Me: No? I was just Herfing The Derf
Parents: Oh Okay good?

by TheGuyWhoCanTalkLikeThis May 22, 2011