Derf

One stupid ass fucked up bitch, who doesnt know what she wants, lies all the time, tells you she likes you... but then sometimes wants to get on other people...

Man... she is such a Derf!

by Derf Hater July 12, 2006

derf

a retartedly, annoying white girl; usually very ugly

that stalker gurl is a mad derf

by Anonymous July 12, 2006

derf

The reverse of the name "Fred". Commonly used by people who are either trying to be silly, those who think that it's a cool name and didn't like being labeled a "Fred", and those who truly think that it's a great pseudonym and no one will ever figure it out.

Overheard at a trekkie convention:

Fred: "Dude, I'm so awesome, I'm gonna reverse my name and call myself Derf."
Clueless friend: "Dude, that's awesome!!!"

by Octoboi July 30, 2007

Derf

A derf is another word for the unwanted. the person no one wants/need. the loner. the suspected pshyco killer. it can also be another word for tool, widely known as somebody no one needs (annoying). an extremely BIG insult.

Can you believe that effing Derf? what a tool!

by CoUnTrYwOrLd July 7, 2011

red dwarf

only the greatest band in existance.

"How was the Red Dwarf concert last night, barbara?"
"Oh, it was the shit, i climaxed like fourteen times!!!"

by pinkeye January 27, 2005

derf

(Definition 1): The extra skin that allows your balls to swing out, so you don't shit on them. (Although usually covered in hair, there have been reports of hairless and albino derf spottings in the wild);
(Definition 2): sweaty, stinky, beneath you, Flappy Fringered Bassist

(Definition 1): This Guy I know was in a bad car accident and broke his derf. Doctor told him it might never be the same.
(Definition 2): That guy they caught spanking it in the Mens room is such a Derf.

by Jaysmoka April 29, 2007

Red Dwarf

A man short gay and hairy ie ross taylor. He must put on a fake american acent that makes the pitch of his voice only noticable to dogs.

He is so much a red fuckin dwarf. RED DWARF SCUM BAG!!!!!!!!!

by Jon January 20, 2005