Derf

another way to say the word "duh" almost like obviously

Person 1: Wait why are we going to the mall?
Person 2: To go shopping, derf!!!

by yeah3xyeah3xyeah3x March 28, 2011

deffed

take a shit, defecation

john deffed, but it was a bad dung

by michael foolsley November 24, 2009

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

Deff Twapp

to be cool
opposite of crap
deff= deffinitly twapp
twapp= cool

wow thats so deff twapp
your sweaters deff twapp

by Avery Wheaton September 19, 2007

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

totes deff

another way of saying most deff, fo sho, or of course. it originated from clint but was then spread to south florida by nikki

Meghan:"Paul's ass is huge"
Nikki: "Totes Deff!"

by NikkiHuts May 21, 2008