Fo'Deff

definitely or yes

this word was invented by sierra. ©

Me: Want to do something Wedsday?
Her: Fo'Deff

by zmay989 March 30, 2009

deffie

Urbandictionary slang for "definition." When one integrates a tasty word into his/her vocabulary or wonders what one could be, one might look up the deffie on urbandictionary.com

Hey loser, whats the deffie of "douchebag?"

by M ! T c H May 13, 2005

deff reject

to have your deffinitions rejected by urban dictionary, then get pissed off.

omg why does urban dictionary have to deff reject me?

by brick tamblan June 11, 2006

deffy

To make an emberassment of oneself. To fail at suicide in an attempt of gaining attention.

Deffy slit his wrists like a little school girl.

by Anonymous October 2, 2003

deffed

take a shit, defecation

john deffed, but it was a bad dung

by michael foolsley November 24, 2009

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

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