def

Permutation of "deft". Adroit.

Yo, sir. Those moves are def.

by Bud April 3, 2004

Def

UrbanDictionary.com's abbreviation for 'definition'. See the 'new def' link at the top of the page.

I added a new def today.

Okay, okay, I DO sound stupid.

by Diggity Monkeez February 3, 2005

def

Certain. First used by Run-DMC. Sort for definate.

Were the best most def.

by Ahmose July 31, 2003

def

abreviation for the word definately, usually used by kids who are either way cool, or way lame.

the only way to pull of using the term "def" is to be the first one around to use it. if you're just copying someone, people might think you're lame.

Kara asked if the new guy was cute.
Emily repiled, "Oh most def! He's soo hot!"

by Kara April 25, 2005

def def

a cooler way to say "definetely", used frequently by potheads

1. "I'm def def wasted"

2. "You should def def call me back"

by Mr.Byrne August 6, 2008

defs

the uncool, lazy way of saying "definitely"

Hey Carly, i'm your best friend right?" "Yea! defs!

by DKO123 September 26, 2010

Def

IS short for definitive. Originated in NY, no doubt.

or

"#3 on your touch tone, D-E-F spells def" either Tak or Ryu of Styles of Beyond...

by Titanium October 6, 2004